
Open Water
Two divers are left out at sea without a boat. There’s nothing but water for miles, unless they look at what’s underneath them...
Despite its minimal budget of $120K, Open Water became a box office phenomenon, earning $54.7M worldwide—a remarkable 45470% return. The film's unique voice engaged audiences, confirming that strong storytelling can transcend budget limitations.
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%)
Open Water (2004) demonstrates strategically placed dramatic framework, characteristic of Chris Kentis's storytelling approach. This structural analysis examines how the film's 15-point plot structure maps to proven narrative frameworks across 1 hour and 19 minutes. With an Arcplot score of 7.1, the film balances conventional beats with creative variation.
Structural Analysis
The Status Quo at 1 minutes (1% through the runtime) establishes Susan and Daniel at home, stressed by work and daily responsibilities. Their relationship is strained by busy schedules and disconnection.. Structural examination shows that this early placement immediately immerses viewers in the story world.
The inciting incident occurs at 9 minutes when The dive boat departs for open water. A head count miscount occurs (passenger confusion) that will lead to the couple being left behind.. 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 19 minutes marks the transition into Act II, occurring at 24% of the runtime. This demonstrates the protagonist's commitment to Susan and Daniel surface to discover the boat is gone. They have been left behind in open ocean. The realization hits - they are alone, miles from shore., moving from reaction to action.
At 38 minutes, the Midpoint arrives at 49% of the runtime—precisely centered, creating perfect narrative symmetry. The analysis reveals that this crucial beat First shark appears. The threat escalates from exposure and exhaustion to active predation. False hope of rescue (distant boat) passes without seeing them., fundamentally raising what's at risk. The emotional intensity shifts, dividing the narrative into clear before-and-after phases.
The Collapse moment at 57 minutes (72% through) represents the emotional nadir. Here, Daniel, severely injured and bleeding, realizes he's attracting sharks and will doom them both. He makes the choice to let go and drifts away, sacrificing himself., shows the protagonist at their lowest point. This beat's placement in the final quarter sets up the climactic reversal.
The Second Threshold at 62 minutes initiates the final act resolution at 79% of the runtime. Susan removes her equipment and accepts her fate. She surrenders to the ocean, choosing to go under rather than continue suffering., demonstrating the transformation achieved throughout the journey.
Emotional Journey
Open Water'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 Open Water against these established plot points, we can identify how Chris Kentis utilizes or subverts traditional narrative conventions. The plot point approach reveals not only adherence to structural principles but also creative choices that distinguish Open Water within the horror genre.
Chris Kentis's Structural Approach
Among the 2 Chris Kentis films analyzed on Arcplot, the average structural score is 7.3, reflecting strong command of classical structure. Open Water takes a more unconventional approach compared to the director's typical style. For comparative analysis, explore the complete Chris Kentis filmography.
Comparative Analysis
Additional horror films include Lake Placid, A Nightmare on Elm Street and Cat's Eye. For more Chris Kentis analyses, see Silent House.
Plot Points by Act
Act I
SetupStatus Quo
Susan and Daniel at home, stressed by work and daily responsibilities. Their relationship is strained by busy schedules and disconnection.
Theme
Discussion about needing a vacation to reconnect. The tour operator casually mentions the importance of staying with your buddy - foreshadowing the film's central crisis about interdependence.
Worldbuilding
Establishing their ordinary lives, relationship tension, travel to the Caribbean, arrival at the dive resort, and preparation for the scuba trip. Meeting other tourists and crew.
Disruption
The dive boat departs for open water. A head count miscount occurs (passenger confusion) that will lead to the couple being left behind.
Resistance
The couple enjoys the dive, exploring the reef together. Brief moments of connection underwater. They swim away from the group, trusting they can find their way back.
Act II
ConfrontationFirst Threshold
Susan and Daniel surface to discover the boat is gone. They have been left behind in open ocean. The realization hits - they are alone, miles from shore.
Mirror World
The couple must rely entirely on each other. Their relationship becomes the emotional anchor. Daniel tries to reassure Susan; their dynamic shifts from distant partners to survival team.
Premise
Survival mode: treading water, dealing with exhaustion, sunburn, dehydration. Hoping for rescue. Dealing with jellyfish stings. Maintaining hope while facing the vast emptiness.
Midpoint
First shark appears. The threat escalates from exposure and exhaustion to active predation. False hope of rescue (distant boat) passes without seeing them.
Opposition
Night falls - disorientation and terror increase. Multiple sharks circle. Daniel is bitten. Hypothermia sets in. Arguments and blame surface. Physical and emotional deterioration accelerates.
Collapse
Daniel, severely injured and bleeding, realizes he's attracting sharks and will doom them both. He makes the choice to let go and drifts away, sacrificing himself.
Crisis
Susan alone, traumatized by Daniel's death, exhausted beyond measure. She floats in darkness, processing her loss and facing her own mortality.
Act III
ResolutionSecond Threshold
Susan removes her equipment and accepts her fate. She surrenders to the ocean, choosing to go under rather than continue suffering.
Synthesis
Susan is pulled under by sharks (implied attack). The boat crew discovers the couple's belongings left on board, realizing their fatal error. Recovery efforts find only remnants.
Transformation
News footage and search efforts. The camera/equipment washes ashore. The film closes with the emptiness of the ocean - the couple consumed by the indifferent natural world they entered.






