
The Light Between Oceans
A lighthouse keeper and his wife living off the coast of Western Australia raise a baby they rescue from an adrift rowboat.
Working with a moderate budget of $20.0M, the film achieved a modest success with $26.0M in global revenue (+30% profit margin).
Plot Structure
Story beats plotted across runtime


Narrative Arc
Emotional journey through the story's key moments
Story Circle
Blueprint 15-beat structure
Arcplot Score Breakdown
Weighted: Precision (70%) + Arc (15%) + Theme (15%)
The Light Between Oceans (2016) demonstrates strategically placed plot construction, characteristic of Derek Cianfrance's storytelling approach. This structural analysis examines how the film's 15-point plot structure maps to proven narrative frameworks across 2 hours and 13 minutes. With an Arcplot score of 7.0, the film balances conventional beats with creative variation.
Structural Analysis
The Status Quo at 1 minutes (1% through the runtime) establishes Tom Sherbourne, a traumatized WWI veteran, rows alone to Janus Rock lighthouse. He is isolated, damaged, and seeking solitude away from the world.. Structural examination shows that this early placement immediately immerses viewers in the story world.
The inciting incident occurs at 16 minutes when Isabel suffers her first miscarriage. The couple's dream of having a family is shattered, introducing profound loss into their isolated paradise.. At 12% through the film, this Disruption aligns precisely with traditional story structure. This beat shifts the emotional landscape, launching the protagonist into the central conflict.
The First Threshold at 33 minutes marks the transition into Act II, occurring at 25% of the runtime. This illustrates the protagonist's commitment to A boat washes ashore carrying a dead man and a living baby girl. Isabel, desperate for a child, begs Tom to keep the baby rather than report it. Tom makes the active choice to violate his duty and keep the child, naming her Lucy., moving from reaction to action.
At 67 minutes, the Midpoint arrives at 50% of the runtime—precisely centered, creating perfect narrative symmetry. The analysis reveals that this crucial beat During a mainland visit, Tom sees Hannah Roennfeldt at her husband's grave and realizes she is Lucy's biological mother, still grieving. Tom's guilt intensifies as he witnesses the devastating consequences of their choice. The stakes raise dramatically - this is no longer abstract; there's a real woman suffering., fundamentally raising what's at risk. The emotional intensity shifts, dividing the narrative into clear before-and-after phases.
The Collapse moment at 100 minutes (75% through) represents the emotional nadir. Here, The rattle is traced back to Tom and Isabel. Authorities arrive and take Lucy away, returning her to Hannah. Isabel is devastated, Tom is arrested, and their entire life collapses. The death of their family unit and their marriage., shows the protagonist at their lowest point. This beat's placement in the final quarter sets up the climactic reversal.
The Second Threshold at 106 minutes initiates the final act resolution at 80% of the runtime. Isabel chooses to tell the truth in court, admitting her role and that Tom tried to report the baby initially. She synthesizes love and truth - protecting Tom by revealing her own guilt. This act of honesty breaks the cycle of lies., demonstrating the transformation achieved throughout the journey.
Emotional Journey
The Light Between Oceans's emotional architecture traces a deliberate progression across 15 carefully calibrated beats.
Narrative Framework
This structural analysis employs structural analysis methodology used to understand storytelling architecture. By mapping The Light Between Oceans against these established plot points, we can identify how Derek Cianfrance utilizes or subverts traditional narrative conventions. The plot point approach reveals not only adherence to structural principles but also creative choices that distinguish The Light Between Oceans within the drama genre.
Derek Cianfrance's Structural Approach
Among the 3 Derek Cianfrance films analyzed on Arcplot, the average structural score is 6.5, demonstrating varied approaches to story architecture. The Light Between Oceans represents one of the director's most structurally precise works. For comparative analysis, explore the complete Derek Cianfrance filmography.
Comparative Analysis
Additional drama films include Eye for an Eye, South Pacific and Kiss of the Spider Woman. For more Derek Cianfrance analyses, see The Place Beyond the Pines, Blue Valentine.
Plot Points by Act
Act I
SetupStatus Quo
Tom Sherbourne, a traumatized WWI veteran, rows alone to Janus Rock lighthouse. He is isolated, damaged, and seeking solitude away from the world.
Theme
Isabel's father or local townsperson mentions that "sometimes right and wrong aren't so clear" when discussing the isolation of lighthouse keeping and the choices people must make alone.
Worldbuilding
Tom meets Isabel Graysmark in the coastal town. Their courtship develops through letters while Tom works at the lighthouse. They fall in love and marry, establishing their isolated life on Janus Rock.
Disruption
Isabel suffers her first miscarriage. The couple's dream of having a family is shattered, introducing profound loss into their isolated paradise.
Resistance
Isabel endures a second miscarriage and sinks into deep grief. Tom struggles to console her. They debate whether to keep trying, whether the lighthouse is the right place to raise a family, and what their future holds.
Act II
ConfrontationFirst Threshold
A boat washes ashore carrying a dead man and a living baby girl. Isabel, desperate for a child, begs Tom to keep the baby rather than report it. Tom makes the active choice to violate his duty and keep the child, naming her Lucy.
Mirror World
The couple returns to the mainland with "their" baby Lucy. They encounter Hannah Roennfeldt, the birth mother grieving her lost husband and child, though Tom and Isabel don't yet realize the connection. Hannah embodies the thematic counterpoint: the truth they're denying.
Premise
Tom and Isabel raise Lucy as their own daughter over four years. They experience the joy and fulfillment of parenthood they'd longed for. This is the "promise of the premise" - a family built on a lie, beautiful but unsustainable.
Midpoint
During a mainland visit, Tom sees Hannah Roennfeldt at her husband's grave and realizes she is Lucy's biological mother, still grieving. Tom's guilt intensifies as he witnesses the devastating consequences of their choice. The stakes raise dramatically - this is no longer abstract; there's a real woman suffering.
Opposition
Tom's conscience torments him as he sees Hannah's continued suffering. Lucy grows and asks questions. When Hannah considers remarrying, Tom secretly sends her a rattle from the boat, hoping to give her closure. Isabel discovers this betrayal and they conflict bitterly. The marriage fractures under the weight of the secret.
Collapse
The rattle is traced back to Tom and Isabel. Authorities arrive and take Lucy away, returning her to Hannah. Isabel is devastated, Tom is arrested, and their entire life collapses. The death of their family unit and their marriage.
Crisis
Tom sits in jail, taking full blame to protect Isabel. Isabel, broken and angry, must confront what they've done. Both process the loss of Lucy and face the moral consequences of their choice.
Act III
ResolutionSecond Threshold
Isabel chooses to tell the truth in court, admitting her role and that Tom tried to report the baby initially. She synthesizes love and truth - protecting Tom by revealing her own guilt. This act of honesty breaks the cycle of lies.
Synthesis
Hannah, learning the full truth, realizes Tom and Isabel loved Lucy genuinely. She allows Lucy to say goodbye to Tom and Isabel. Years pass; Tom serves reduced sentence. The characters find forgiveness and acceptance of their complicated truth.
Transformation
Tom, now elderly, stands at the same coastal area where the story began. He is no longer running from the world but has lived through profound moral complexity. Isabel has passed. He sees Lucy (now Grace) as an adult with her own family, suggesting she has integrated both her histories. Transformation complete - from isolation and rigidity to acceptance of life's complexity.




