Obsessed 2009
Directed by
Steve Shill
Made by
Screen Gems
Obsessed Plot Summary
Read the complete plot summary and ending explained for Obsessed (2009). From turning points to emotional moments, uncover what really happened and why it matters.
The film begins as an African-American family settles into their new home, featuring Derek Charles (Idris Elba), his wife Sharon (Beyoncé Knowles), and their baby, Kyle. Upon arriving, Sharon removes the sold sign, and they explore their new surroundings, engaging in a playful game of hide and seek in the vacant rooms, culminating in an intimate moment in their bedroom as they await the arrival of the moving truck.
As the movers show up, Sharon takes charge of organizing their new living space while Derek heads to his office. There, he encounters a striking blonde, Lisa Sheridan (Ali Larter), a temporary worker at the firm. Their initial interaction sparks an undeniable chemistry, with Derek finding himself both intrigued and unsettled by her attention. When Lisa misplaces a bundle of files in the office, their hands accidentally touch, igniting a tension that Derek tries to ignore as he returns home to Sharon.
Despite his efforts to keep things professional, Lisa becomes an increasingly prominent presence in Derek’s life at work. She quickly proves herself to be extraordinarily capable, garnering compliments from colleagues and drawing Derek’s friend’s attention to her attractiveness. After confiding to Ben, one of his pals, that things seem to be getting uncomfortable with Lisa’s persistent clinginess, Derek decides it’s time to address the issue with Human Resources.
After a disastrous office Christmas party where Lisa inappropriately corners him, Derek attempts to set boundaries. Tensions escalate when he finds Lisa unexpectedly in his accommodation one night during a work retreat, leading to an unexpected and regrettable night filled with poor decisions. The next morning, he faces the fallout of his actions, culminating in a series of misunderstandings that unravel his marriage.
As the drama unfolds, Derek attempts to reconnect with Sharon, who is dealing with her own family crises. However, he is unaware that Lisa has her schemes, which escalate to alarming levels. After an incident involving their baby, which ends with Derek and Sharon rushing to the hospital in desperation, the stakes become life-threatening.
In a thrilling climax, Sharon confronts Lisa in their home, leading to a fierce physical confrontation that spills from the bedroom down the staircase and into the attic. In an unexpected turn of events, Sharon’s compassion leads her to save Lisa from a fatal fall—until in a deadly struggle, Lisa ultimately meets her demise. The emotional toll on both families is profound, leaving behind shattered relationships and uncertainty about the future.
In the aftermath, Sharon’s resilience shines through as she walks out to meet Derek, their bond possibly stronger than before. The film closes on a haunting note, highlighting the fragility of love intertwined with obsession.
Obsessed Timeline
Follow the complete movie timeline of Obsessed (2009) with every major event in chronological order. Great for understanding complex plots and story progression.
Family Moves In
The film opens with the African-American family, including Derek Charles, his wife Sharon, and their baby Kyle, settling into their new home. As they remove the sold sign, the family explores their new surroundings, bonding through a playful hide-and-seek game.
Derek's Office Encounter
Derek heads to his office where he meets Lisa Sheridan, a temporary worker who catches his attention. Their initial interaction is charged with chemistry, setting the stage for future complications in Derek's life.
Growing Tension
As Lisa continues to work at the firm, she becomes a more significant presence in Derek's professional life. Despite his attempts to maintain professionalism, their chemistry intensifies, leading Derek to feel increasingly uneasy about her advances.
Confiding in Friends
Derek shares his worries about Lisa's clinginess with his friend Ben, revealing the uncomfortable situation he finds himself in. This conversation highlights Derek's internal struggle to balance his marriage and professional life amidst growing tension with Lisa.
Christmas Party Incident
During an office Christmas party, Lisa inappropriately corners Derek, further blurring the lines of professionalism and personal boundaries. This event is a pivotal moment that forces Derek to confront the escalating situation head-on.
Work Retreat Surprise
Things spiral out of control when Derek discovers Lisa unexpectedly in his accommodation during a work retreat. What follows is a series of fateful decisions that lead to unintended consequences that jeopardize his marriage.
Marital Fallout
The aftermath of Derek's regrettable night with Lisa creates tension and misunderstandings with Sharon. As the emotional strain builds, Derek struggles to reconnect with Sharon, who is dealing with her own familial issues.
Escalating Schemes
While Derek tries to mend his relationship with Sharon, Lisa's schemes grow bolder, putting the family at risk. The plot thickens as Lisa becomes increasingly dangerous, manipulating situations to her advantage.
Hospital Crisis
An alarming incident involving their baby prompts Derek and Sharon to rush to the hospital. The incident highlights the stakes and pressures facing the family and escalates the tension in the narrative.
Confrontation with Lisa
In a gripping climax, Sharon confronts Lisa about her obsession, leading to a fierce physical struggle. The confrontation escalates dramatically, showcasing the intensity of emotions and the perils of obsession.
Tragic Outcome
The struggle between Sharon and Lisa culminates in a tragic turn when Lisa meets her demise. This event leaves both families reeling and signifies the devastating consequences of unchecked obsession.
Aftermath of the Conflict
In the wake of the confrontation, both families are left to deal with the emotional fallout from the events. The loss and fractured relationships present a haunting atmosphere of uncertainty and vulnerability.
Rebuilding Together
Despite the tumultuous experiences, Sharon's resilience leads her to reconnect with Derek. They emerge from the devastating events stronger, suggesting that love can endure even the most trying circumstances.
Fragility of Love
The film concludes on a haunting note, emphasizing the fragility of love as it intertwines with obsession. The final moments reflect on the complexities of relationships shaped by external pressures and emotional turmoil.
Obsessed Characters
Explore all characters from Obsessed (2009). Get detailed profiles with their roles, arcs, and key relationships explained.
Derek Charles
Derek is a dedicated family man whose life spirals into chaos due to an enticing yet dangerous distraction at work. Struggling with guilt and the repercussions of his decisions, he embodies the conflict between fidelity and temptation. His character arc reveals the impact of personal choices on family dynamics.
Sharon Charles
Sharon is a strong and resilient woman navigating the challenges of motherhood and marital trust. Her character evolves from a supportive wife to a fierce protector of her family as tensions rise. Sharon's compassion, despite the betrayal, highlights her emotional strength and commitment to her family.
Lisa Sheridan
Lisa is an alluring yet unstable character whose obsession with Derek brings turmoil to his family. Initially appearing as a confident professional, her darker motives are revealed as she escalates her pursuit of Derek. Lisa's character serves as a catalyst for the unfolding drama, showcasing the dangers of obsession.
Obsessed Settings
Learn where and when Obsessed (2009) takes place. Explore the film’s settings, era, and how they shape the narrative.
Time period
The events of the film occur in contemporary times, reflecting modern societal issues such as workplace harassment and the complexities of marital relationships. The interactions among the characters symbolize the ever-present challenges of balancing personal and professional lives.
Location
Home, Office
The movie primarily takes place in Derek and Sharon’s new home and his office, symbolizing both comfort and conflict. Their home is a space of intimacy and familial warmth, while the office introduces tension and complications as Derek encounters Lisa. Each location serves as a backdrop for the unfolding drama and the fragility of their relationships.
Obsessed Themes
Discover the main themes in Obsessed (2009). Analyze the deeper meanings, emotional layers, and social commentary behind the film.
💔
Obsession
The theme of obsession is portrayed through Lisa's fixation on Derek, which ultimately leads to destructive consequences. This obsession causes a ripple effect, straining Derek’s marriage and resulting in a series of tragic events. The film explores how unchecked desires can lead to devastating outcomes.
❤️
Love & Betrayal
Love and betrayal intertwine in the narrative, as Derek’s momentary lapse of judgment places his marriage in jeopardy. Sharon's journey through heartbreak showcases the resilience required to navigate betrayal, highlighting the complexities of trust and emotional recovery. The theme emphasizes the fragility of relationships amidst external threats.
⚖️
Consequences
The film emphasizes the theme of consequences, showcasing how one poor decision spirals into chaos for Derek and Sharon. Each character's actions lead to significant repercussions, reflecting how quickly one's life can be altered. The narrative serves as a cautionary tale about the weight of choices made in moments of vulnerability.
Obsessed Spoiler-Free Summary
Discover the spoiler-free summary of Obsessed (2009). Get a concise overview without any spoilers.
In a sleek, modern suburb where polished homes mask the quiet pressures of ambition, Derek Charles enjoys the trappings of a successful career and a seemingly perfect family life. His partnership with his wife, Sharon, feels solid and warm, anchored by their new house and the promise of a bright future together. The everyday rhythm of work, love, and the subtle pride of providing for a growing family creates a comforting, almost cinematic backdrop that invites the viewer to settle into the calm before the storm.
The equilibrium begins to wobble when a striking, determined colleague, Lisa Sheridan, enters Derek’s professional world. Her presence is marked by an intensity that blurs the line between professional admiration and unsettling fixation. The office becomes a stage for lingering glances, lingering conversations, and an undercurrent of tension that slowly seeps into Derek’s thoughts. The atmosphere shifts from polished efficiency to a quieter, more unsettling suspense, hinting that the boundaries between ambition and obsession can be dangerously thin.
Against this backdrop of domestic serenity and creeping unease, Derek senses that his carefully constructed life may soon be challenged in ways he never anticipated. The looming threat is less about overt danger and more about the erosion of trust, the fragility of reputation, and the instinct to protect those he loves. As the tension builds, the film steadies itself in a mood that balances polished realism with a quietly mounting dread, inviting the audience to wonder how far one will go when the safety of a perfect life is put on the line.
Movies with Similar Twists and Themes
Uncover films that echo the narrative beats, emotional arcs, or dramatic twists of the one you're exploring. These recommendations are handpicked based on story depth, thematic resonance, and spoiler-worthy moments — perfect for fans who crave more of the same intrigue.
Featured on this page
What's After the Movie?
Not sure whether to stay after the credits? Find out!
Explore Our Movie Platform
New Movie Releases (2025)
Famous Movie Actors
Top Film Production Studios
Movie Plot Summaries & Endings
Major Movie Awards & Winners
Best Concert Films & Music Documentaries
Movie Collections and Curated Lists
© 2025 What's After the Movie. All rights reserved.