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Lost Girls

Lost Girls 2020

Directed by

Liz Garbus

Liz Garbus

Made by

Netflix

Netflix

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Lost Girls Plot Summary

Read the complete plot summary and ending explained for Lost Girls (2020). From turning points to emotional moments, uncover what really happened and why it matters.


Mari Gilbert, portrayed by Amy Ryan, is a tenacious single mother managing the challenges of life in New York while raising her three daughters: Sherre, played by Thomasin McKenzie, Sarra (Oona Laurence), and the eldest, Shannan (Sarah Wisser), who has moved out. When Shannan goes missing on the day of a family dinner, Mari’s growing unease quickly escalates into desperation. As days slip by with no word from her daughter, Mari and Sherre set off on a frantic search for answers.

Their quest reveals that Shannan had been living a hidden life as a sex worker in Long Island—an earth-shattering truth that only strengthens Mari’s resolve to bring her home. After the police turn a deaf ear to her pleas, Mari meets with Detective Dean Bostick, who downplays her fears, believing Shannan will return. However, a dog’s discovery on the highway leads to a grave turning point in the investigation as the authorities unearth multiple bodies, pushing Commissioner Richard Dormer to confront the unsettling possibility of a serial killer stalking the area. Although Dormer assures Mari that Shannan is not among the victims, she remains steadfast in her pursuit of the truth.

As the weeks drag on and media coverage intensifies, Mari grows increasingly frustrated with the lack of attention from law enforcement. Driven into action, she tirelessly prints missing person posters and visits the police station daily, intent on raising her voice until Shannan’s whereabouts are uncovered. Joined by a community of grieving families—including Lorraine (Miriam Shor) and Lynn (Ana Reeder)—and Kim, a former sex worker whose sister is among the missing, Mari finds strength in their shared anguish and determination.

Together, they take to the streets to plaster the neighborhood where Shannan was last heard from with posters of her face. The presence of Dormer in their midst ignites conflicting emotions among the families, aware of the police’s insufficient response. Fueled by anger, Mari confronts Dormer, insisting that their negligence regarding the girls’ disappearances is unconscionable.

At the same time, an enigmatic informant, Joe Scalise, reaches out to Mari, hinting that Dr. Peter Hackett may be further entwined in the disappearances than anticipated. Digging deeper, Mari discovers that the security footage from the night Shannan vanished has yet to be reviewed by the authorities.

As tensions escalate, Mari boldly challenges both Dormer and Bostick about the course of the investigation, revealing her transformation from a grieving mother to a fierce advocate for justice. In the midst of this turmoil, Sherre learns that Kim has returned to a difficult lifestyle, adding to the group’s stress.

As the search expands, Dormer gets caught up with Dr. Hackett, urgently seeking answers about the missing footage, but the urgent call to action lands on Bostick’s shoulders as he discloses to Dormer the chilling fact that the bodies of the missing girls have remained hidden in the same place for fifteen years. This explosive information sends shockwaves through the community, leaving Mari and the families in disbelief from the implications this has for Shannan’s case.

Overwhelmed with a mix of anger and heartbreak, Mari comes to terms with the idea that if it weren’t for Shannan’s desperate situation, these other losses could have remained hidden. Dormer tries to placate her by insisting on sticking to evidence and facts, but Mari’s pain is amplified when she learns that her daughter had been in foster care, which further complicates their family dynamics.

As time continues to wane without resolution, Mari’s sense of injustice grows ever stronger. A call from Joe regarding Dr. Hackett’s sudden exit compels Mari to confront Dormer about the marshland near where Shannan’s jacket was found, demanding thorough searches that have yet to be undertaken. Dormer’s initial reluctance to act pushes Mari to courageously proclaim she will publicly seek justice for her daughter.

Ultimately, Dormer’s conscience prevails as he orders the marsh to be drained, leading to the grim discovery of Shannan’s remains—an harrowing acknowledgment of the failure to act sooner. As Mari whispers a heartfelt goodbye to her daughter, she becomes an embodiment of unyielding resolve to ensure accountability.

As the anniversary vigil approaches, Mari seizes the moment to rally support not just for her daughter but for all the affected families, passionately calling for justice. Her heartfelt plea is broadcasted to national audiences, demanding the attention that has long been denied.

In a tragic turn, news outlets report that an independent autopsy reveals Shannan’s death resulted from homicide, a grim fact in light of the ongoing mystery surrounding the Long Island serial killer. This haunting reminder of the all-too-frequent injustices serves to underscore Mari’s fight, underscoring her legacy of tenacity and determination.

In a poignant twist of fate, news footage revisits Mari, revealing her tragic end in 2016 following a battle with schizophrenia, while her daughter Sherre remains resolute, ensuring Mari’s fight for justice continues to shine as a beacon of hope amidst the darkness.

Lost Girls Timeline

Follow the complete movie timeline of Lost Girls (2020) with every major event in chronological order. Great for understanding complex plots and story progression.


Family Dinner Day

On the day scheduled for a family dinner, Mari Gilbert's eldest daughter, Shannan, goes missing. This troubling event marks the beginning of Mari's desperate search for her daughter, shifting her life dramatically.

Day of the family dinner New York

Initial Search Begins

As days pass without any word from Shannan, Mari, accompanied by her daughter Sherre, embarks on a frantic search. Their determination reveals a growing sense of urgency as they reach out to friends and track down possible leads.

Days after Shannan's disappearance New York

Discovery of Shannan's Secret Life

During their investigation, Mari learns shocking details about Shannan's hidden life as a sex worker in Long Island. This revelation significantly strengthens Mari's resolve to find her daughter and bring her home.

Days after going missing Long Island

Meeting with Detective Bostick

Mari seeks help from Detective Dean Bostick, who downplays her concerns about Shannan's disappearance. His dismissal leaves Mari frustrated and more determined to undertake her own investigation.

After meeting Bostick Police Station

Major Development in the Case

A pivotal moment occurs when a dog discovers human remains on the highway, diverting the investigation into a possible serial killer case. The authorities begin to uncover multiple bodies, escalating the search for Shannan.

Weeks after Shannan's disappearance Highway

Tireless Advocacy for Justice

Growing frustrated with law enforcement's lack of urgency, Mari starts printing missing person posters and visits the police station daily. Her relentless efforts are aimed at raising awareness of Shannan's case and those of other missing girls.

Weeks into the investigation New York

Joining Forces with Other Families

Mari finds solidarity with other families who are searching for their missing loved ones. Together, they rally and plaster posters of Shannan in the area where she was last seen, amplifying their calls for justice.

During the community effort New York

Confrontation with Commissioner Dormer

Fuelled by anger, Mari confronts Commissioner Richard Dormer about the negligence surrounding the disappearances of young women. This encounter solidifies her transformation from a grieving mother into a fierce advocate for justice.

During a public meeting Community Gathering

Hints from an Informant

An informant, Joe Scalise, contacts Mari, suggesting that Dr. Peter Hackett may be involved in the disappearances. This revelation prompts Mari to dig deeper into the police's investigation methods and available evidence.

During the investigation

Hidden Evidence Revealed

Mari learns that crucial security footage from the night Shannan disappeared has not been reviewed by authorities. Her discovery highlights the systemic failures in the investigation and fuels her determination to hold law enforcement accountable.

Following the informant's tip

Shocking Discovery of Bodies

Detective Bostick reveals to Commissioner Dormer that the bodies of the missing girls have remained undiscovered for fifteen years in the same location. This shocking truth reverberates through the community and adds urgency to Mari’s quest.

Weeks into the investigation Long Island

A Mother's Heartbreak

Mari wrestles with the heart-wrenching realization that Shannan's situation might have prevented the discovery of other victims. This personal anguish is compounded by the knowledge that her daughter had been in foster care, complicating their family story.

After learning about other victims

Public Demand for Justice

As Mari's frustration crescendos, she promises to seek public justice for Shannan if law enforcement does not respond. Her unwavering stance embodies the fight for justice for not only her daughter but other victims as well.

Days leading to the vigil

Grim Discovery

In a tragic conclusion, the marshland is drained, leading to the grim discovery of Shannan's remains. This harrowing moment serves as a painful acknowledgment of the failures that marked her search.

After public demands Marshland

Vigil for Justice

As the anniversary of Shannan's disappearance approaches, Mari organizes a vigil, calling for justice for all victims. Her emotional plea captures national attention, representing the resolve of families affected by these tragedies.

Anniversary of Shannan's disappearance Public Vigil

Lost Girls Characters

Explore all characters from Lost Girls (2020). Get detailed profiles with their roles, arcs, and key relationships explained.


Mari Gilbert

A determined single mother whose tenacity drives her to seek the truth about her daughter's disappearance. Mari transforms from being reactive to proactive, battling systemic failures and igniting a movement for justice.

👩‍👧 Single Mother 🔍 Investigator

Dean Bostick

A detective who initially downplays Mari's fears regarding her missing daughter. His character evolves as the investigation unfolds, facing moral dilemmas regarding his role in the case.

👮‍♂️ Law Enforcement 📉 Skepticism

Richard Dormer

The police commissioner who is compelled to confront the disturbing reality of multiple murders in the area. His journey involves grappling with the consequences of delayed action as clues emerge.

👮‍♂️ Authority 🧩 Conflict

Sherre Gilbert

Mari's daughter who supports her mother throughout the harrowing journey. She embodies resilience and serves as a symbol of hope amidst the turmoil surrounding their family.

👧 Family 💪 Resilience

Lost Girls Settings

Learn where and when Lost Girls (2020) takes place. Explore the film’s settings, era, and how they shape the narrative.


Time period

The story is set in contemporary times, reflecting the ongoing struggles and societal issues linked to missing persons and the systemic challenges faced by families affected by crime. The film tackles real-life events surrounding the unsolved cases of missing women in the Long Island area.

Location

New York, Long Island

The film unfolds in the bustling streets of New York, where the protagonist navigates life as a single mother. Long Island is also a crucial location, known for its suburban landscapes and as the site of tragic events tied to the disappearances of young women.

🌆 City 🏝️ Island

Lost Girls Themes

Discover the main themes in Lost Girls (2020). Analyze the deeper meanings, emotional layers, and social commentary behind the film.


💔

Loss

Loss pervades the film as Mari grapples with the disappearance of her daughter, showcasing the emotional toll on families when a loved one goes missing. This theme serves to highlight the effects of grief and the relentless pursuit for closure, even amidst bureaucratic indifference.

⚖️

Justice

Justice is a core theme as Mari transforms from a worried mother to a passionate advocate, raising her voice against systemic failures. Her fight emphasizes the importance of community support in the quest for accountability, shedding light on how personal loss can ignite a larger movement for change.

📰

Media Attention

The film illustrates the role of media in raising awareness around missing persons. Mari’s plea for justice, amplified through news broadcasts, highlights how public attention can influence investigations and bring pressure on authorities to act.

Lost Girls Ending Explained

Unravel the ending of Lost Girls (2020) with our detailed explanation. Understand the final scenes, character fates, and unresolved questions.


The ending of “Lost Girls” reveals a poignant turning point for Wendy and her family. Throughout the film, Wendy’s connection to her childhood fantasy of Peter Pan has haunted her, impacting her relationships and mental well-being. When her daughter Berry is almost swept away by her obsession with Peter, it becomes clear that this curse, or family tradition, must be broken. In a powerful scene, Wendy finally faces the truth when she meets her mother at Nana’s funeral. Her mother admits she’s uncertain about Peter Pan’s true nature but loved him just as Wendy and her grandmother did. This conversation signifies that they are choosing to let go of their collective obsession and the myth that has defined their family for generations.

As Wendy recognizes that the fairy tale’s hold on her is no longer beneficial, she walks away from Peter, symbolizing her acceptance of adulthood and reality. Her decision to leave Peter behind marks her liberation from the recurring cycle of childhood longing and family curses. The film suggests that true healing involves accepting the truths of life, not just retreating into make-believe. With this, the family begins to break free from the myth, and Wendy finds peace in facing her past, her family, and herself. The story closes on a note of hope, emphasizing that moving beyond childhood fantasies and confronting reality is key to personal growth and freedom from old patterns.

Lost Girls Spoiler-Free Summary

Discover the spoiler-free summary of Lost Girls (2020). Get a concise overview without any spoilers.


In the quiet stretches of Long Island’s outer banks, a close‑knit community is shaken when a young woman vanishes without a trace. The disappearance reverberates through the salty air, hinting at hidden currents beneath the region’s idyllic façade and suggesting that the familiar streets may conceal far more than everyday worries.

Mari Gilbert is a tenacious single mother struggling to keep her family afloat in the bustling shadows of New York City while raising three daughters. When her eldest, Shannan, disappears on the night they were supposed to gather for dinner, Mari’s ordinary worries quickly turn into an urgent, relentless quest for answers. The film frames her world through the lens of a mother’s love that refuses to be silenced, even when institutions appear indifferent.

The story unfolds against a backdrop of modest homes, marsh‑lined avenues, and a police department whose responses feel both procedural and detached. Detective Dean Bostick offers polite reassurances, while Commissioner Richard Dormer watches the growing unease from a distance, hinting at deeper systemic gaps. As Mari pushes past bureaucratic inertia, she finds unexpected camaraderie among other families who share her anguish, forging a small but determined network that clings to hope amid uncertainty.

Through a sober, atmospheric palette and a tone that balances dread with steadfast resolve, the film captures the tension of a mother navigating grief, community suspicion, and the opaque machinery of law enforcement. Mari evolves from a grieving parent into a fierce advocate, her inner fire illuminating the darkness that surrounds the case and inviting viewers to wonder what truths lie just beyond the shoreline’s mist.

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