Directed by

Rúnar Rúnarsson
Made by

Compass Films
Read the complete plot summary and ending explained for When the Light Breaks (2024). From turning points to emotional moments, uncover what really happened and why it matters.
On a single day in Iceland, Diddi Baldur Einarsson and Una Elín Hall begin to navigate a fragile, evolving bond. They move from a sweeping ocean outlook to a shared home with mutual friend Gunni Mikael Kaaber, exchanging quiet conversations and intimate moments in bed. Diddi leaves early, and Una, hearing Gunni come home, slips out into the night. The moment is underscored by Jóhann Jóhannsson’s requiem, Odi et Amo, as lights in the dark swell into a tunnel scene that erupts into a massive fireball.
Mid-morning, Una and Gunni meet at the arts college where they and Diddi study. Una has not heard about the tunnel disaster—the worst in Iceland’s history—and she cushions Gunni as he reveals that Diddi may have been inside. The circle of friends gathers at a Red Cross center, where the devastating news lands: Diddi has died.
Una leaves to process the shock, then returns to the group at a bar, where she meets Klara Katla Njálsdóttir, Diddi’s girlfriend. Klara reveals that Diddi had described her as a lesbian, but Una opens up about her own pansexuality, noting that her last relationship was with a man. A private conversation between Una and Gunni confirms that Una and Diddi were having a covert affair, a truth Diddi had already shared with Gunni. The tension between secrecy and public perception lingers as Una contemplates her place in the wake of the tragedy.
Una confesses she resents Klara for standing as the public face of the couple, while she must simply be the grieving friend because their relationship was hidden. The country immerses itself in national mourning, and the friends attend an impromptu service at Hallgrímskirkja, Iceland’s largest church, to honor Diddi and reckon with their loss.
After the service, the group retreats to a house for a tearful, cathartic gathering. As the night winds down, Una and Klara stand on opposite sides of a glass door, their reflections merging in a quiet moment of shared sorrow and tentative connection. The film closes with them lying close together in bed, a fragile peace on the horizon. The opening sequence recurs in the closing shot as Odi et Amo replays, this time through a sunset-lit water reflection that mirrors the ocean outside.
Follow the complete movie timeline of When the Light Breaks (2024) with every major event in chronological order. Great for understanding complex plots and story progression.
Diddi and Una's budding romance and early departure
The film opens by introducing Diddi and Una in the early stage of their relationship, moving from an ocean outlook to Diddi's house. They talk in bed, and Diddi leaves early; Una overhears Gunni coming home and quietly sneaks out. A performance of lights set to Jóhann Jóhannsson's Odi et Amo unfolds into a road tunnel scene that ends with a massive fireball, signaling catastrophe.
Tunnel disaster unfolds
The camera reveals the tunnel disaster as the lights sequence culminates in a fiery explosion. The event is presented as Iceland's worst tunnel tragedy, setting the day’s mood of shock. The tunnel sequence foreshadows the emotional turmoil the friends will confront as they learn who survived and who did not.
Morning at arts college: Diddi's fate discussed
Una and Gunni meet at the arts college where they study with Diddi. Una has not yet heard about the tunnel disaster, and Gunni gently reveals that Diddi may have been in the tunnel. They begin to wrestle with uncertainty and responsibility.
Red Cross center: confirmation of Diddi's death
The friends gather at a Red Cross center to hear the grim news: Diddi has died. The mood is subdued and collective; everyone begins to mourn in a shared, quiet sense of loss. Una leaves the center unable to fully process what she has learned.
Una's private moment with her father and return to friends
After a brief reconciliation with her father, Una returns to join the friends at a bar. There she meets Klara, Diddi's girlfriend, which intensifies the tension around Diddi’s private life and the grief they share. The moment marks the start of a delicate shift in how each person understands loyalty and love.
Bar revelations: Diddi's life and Una's sexuality
At the bar, Klara reveals that Diddi had told her she was a lesbian, while Una confesses she is pansexual. The discussion highlights the public face versus private life of the deceased and the complexities of mourning. The atmosphere mixes grief with hints of hidden relationships that complicate their loyalties.
Private confession: Una and Gunni discuss the affair
In a private conversation later, Gunni confirms that Una and Diddi were indeed lovers, even as Diddi had disclosed the affair to Gunni. Una wrestles with resenting Klara as the public girlfriend while secretly grieving a covert relationship. The revelation deepens the film's tension between truth, identity, and loss.
National mourning and impromptu service
The country falls into national mourning as the friends participate in an impromptu service at Hallgrímskirkja, Iceland's largest church. The service provides a public space for collective grief and shared memory. The scene underscores how a community responds to personal tragedy.
Service exit: Klara and Una's cigarette and art debate
After the service, Klara and Una step outside for a cigarette, where Klara disparages the friends' performance art. Una counters by showing how their art can reveal additional perspectives on grief, identity, and connection. The exchange deepens the contrast between public mourning and private experience.
Tear-filled party at a friend's house
The party becomes a raw space for shared grief, with tears and awkward humor mingling in the late hours. Friends try to process their loss while confronting the fragile loyalties between Klara, Una, and Diddi's memory. The atmosphere blends intimate confession with collective sorrow.
Glass door moment: reflections merge
As the party ends, Una and Klara stand on either side of a glass door, their reflections merging in a quiet, symbolic moment that hints at a new closeness. The image carries a sense of unresolved tension and potential connection amid memory and mourning.
Ending: bed scene and opening sequence reference
The film ends with Una and Klara lying close together in bed, mirroring the opening sequence's intimacy. The closing image is paired with a final repetition of Odi et Amo as lights on water reflect the setting sun on the ocean, linking the day’s start and end. The scene leaves their futures open but suggests a fragile new connection amid memory and mourning.
Explore all characters from When the Light Breaks (2024). Get detailed profiles with their roles, arcs, and key relationships explained.
Diddi (Baldur Einarsson)
Diddi is a charismatic, conflicted figure whose public life with Klara conceals a deeper, private relationship with Una. He shares a home with their mutual friend Gunni, signaling a tight-knit circle. His sudden death in Iceland's tunnel disaster becomes the emotional engine of the story, exposing hidden loyalties and truths.
Klara (Katla Njálsdóttir)
Klara is Diddi's public partner, the face of their relationship, who grapples with the revelation of Diddi's affair and Una's pansexual identity. Her role as the public girlfriend places her at the center of the group's dynamic and the community's response to the tragedy. She navigates tension between appearance and private truth within the circle.
Una (Elín Hall)
Una is introduced as part of the growing relationship with Diddi; she is pansexual and becomes entangled in a covert affair that complicates grief and relationships. Her perspective drives much of the emotional arc, balancing desire, guilt, and longing. She must reckon with how others perceive her identity within a community in mourning.
Gunni (Mikael Kaaber)
Gunni is the mutual friend who shares a home with Diddi, signaling a tight-knit group. He knows about the affair and becomes a confidant within the circle, helping to reveal hidden dynamics. His reactions and conversations push the plot toward unraveling secrets and confronting loyalty.
Siggi (Gunnar Hrafn Kristjánsdóttir)
Siggi is a member of the friend circle who participates in the aftermath and mourning rituals. While not central to the plot, he provides support and remains a steady presence through the emotional turmoil.
Learn where and when When the Light Breaks (2024) takes place. Explore the film’s settings, era, and how they shape the narrative.
Location
Iceland, Hallgrímskirkja, road tunnel
Set over a single day in Iceland, the film unfolds from ocean viewpoints to intimate interiors and a dramatic tunnel disaster. It juxtaposes Diddi's house, a university arts college, and public spaces of mourning like Hallgrímskirkja to show how personal tragedy reverberates through a nation. The tunnel sequence marks a national tragedy that shapes how the characters grieve and relate to one another.
Discover the main themes in When the Light Breaks (2024). Analyze the deeper meanings, emotional layers, and social commentary behind the film.
🕯️
Grief
The film centers on collective mourning after the tunnel disaster, seen through the friends' reactions and the country’s national grief. Una's struggle to process Diddi's death shows grief spilling into intimate relationships and private moments. The impromptu service at Hallgrímskirkja and the tearful party mark mourning as both communal ritual and deeply personal experience.
🏳️🌈
Identity & Love
Una's pansexuality and Diddi's covert affair reveal the complexity of love, loyalty, and honesty. Klara's public image as Diddi's girlfriend collides with the private truths uncovered by friends, highlighting social dynamics around sexuality. The film frames identity as something negotiated within friendship, jealousy, and acceptance.
🎭
Art & Catharsis
The friends' art project functions as a coping mechanism, offering different perspectives on the tragedy. Performance art becomes a vehicle to process grief rather than a mere byproduct of the group dynamics. The film uses art to invite viewer empathy and to reveal how truth can emerge through creative expression.
🪞
Memory & Perspective
Reflective imagery and shifting memories alter how the group recalls Diddi and their relationships. Una and Gunni's private conversations reveal what was known and when, complicating who mourns and why. The final sequence, with sunset reflections, ties back to the opening and suggests memory's subjective nature.

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Explore the mobile appDiscover the spoiler-free summary of When the Light Breaks (2024). Get a concise overview without any spoilers.
In the soft, endless light of an Icelandic summer, a single day stretches from one sunset to the next, bathing the rugged coastline and quiet towns in a golden hush. The landscape feels both intimate and vast, where the rhythm of the sea and the flicker of distant lanterns become a visual lullaby. Against this backdrop, the film moves with a contemplative tempo, letting moments linger like the afterglow of a lingering dusk, inviting the audience to breathe in the melancholy beauty of ordinary life.
Una, a young art student, awakens to a day that feels charged with possibility and tenderness. Her world is painted in the pastel hues of campus studios, the salty breeze of the ocean outlook, and the warm, cramped spaces she shares with friends. Early on, she navigates the delicate threads of a budding romance, finding herself caught between the intimacy of late‑night conversations and the restless curiosity that drives her artistic practice. The camera follows her gently, mirroring the way she observes the world—through sketches, lingering glances, and the subtle language of light.
Diddi and Gunni populate Una’s circle, each embodying different facets of connection and creative energy. Diddi moves with a quiet confidence that both steadies and unsettles her, while Gunni offers a steady, almost sibling‑like companionship that grounds her artistic ambitions. Later, Klara enters the frame, bringing a fresh perspective that challenges Una’s understanding of love, identity, and the ways people reveal themselves. Their interactions pulse with the gentle tension of unspoken feelings and the yearning to be seen.
Through carefully composed shots of sun‑kissed waves, reflective glass doors, and the ever‑present hum of Icelandic music, the film weaves a tapestry of love, friendship, sorrow, and beauty. It remains a meditation on how a single day, illuminated by both literal and emotional light, can shape the contours of a young artist’s heart and imagination.
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