
Deep Sea
A girl strays into the dreamy deep sea world. In the deepest part of the sea, all secrets are hidden.
Despite a moderate budget of $28.7M, Deep Sea became a box office success, earning $136.1M worldwide—a 374% return.
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%)
Deep Sea (2023) showcases meticulously timed story structure, characteristic of Tian Xiaopeng's storytelling approach. This structural analysis examines how the film's 15-point plot structure maps to proven narrative frameworks across 1 hour and 52 minutes. With an Arcplot score of 7.3, the film balances conventional beats with creative variation.
Structural Analysis
The Status Quo at 2 minutes (2% through the runtime) establishes Shenxiu, a young girl, sits alone and withdrawn in her blended family home, feeling invisible and unloved as her father focuses on his new wife and baby. Her inner world is grey and lifeless, reflecting her depression.. Structural examination shows that this early placement immediately immerses viewers in the story world.
The inciting incident occurs at 13 minutes when Shenxiu falls overboard during a storm, plunging into the dark ocean depths. This near-death experience becomes the catalyst that transports her into a fantastical underwater world - a manifestation of her subconscious.. 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 27 minutes marks the transition into Act II, occurring at 24% of the runtime. This reveals the protagonist's commitment to Shenxiu makes the active choice to join Nanhe and the crew of the Deep Sea Restaurant in their adventures, embracing this fantasy world as an escape from her painful reality. She commits to seeking the "Deep Sea Spirit" her mother told her about., moving from reaction to action.
At 55 minutes, the Midpoint arrives at 49% of the runtime—precisely centered, creating perfect narrative symmetry. Significantly, this crucial beat False victory: Shenxiu and Nanhe appear to find clues about the Deep Sea Spirit and her mother. Shenxiu feels closer to understanding her mother's disappearance. But the stakes raise - the fantasy world begins showing cracks, hinting at the painful truth she's avoiding., fundamentally raising what's at risk. The emotional intensity shifts, dividing the narrative into clear before-and-after phases.
The Collapse moment at 83 minutes (74% through) represents the emotional nadir. Here, The devastating truth emerges: the Deep Sea Spirit doesn't exist - it was a comforting lie Shenxiu's mother told her. The fantasy world collapses as Shenxiu confronts the reality that her mother deliberately drowned herself, abandoning Shenxiu. The "whiff of death" - both her mother's suicide and the death of Shenxiu's denial., illustrates the protagonist at their lowest point. This beat's placement in the final quarter sets up the climactic reversal.
The Second Threshold at 89 minutes initiates the final act resolution at 80% of the runtime. Breakthrough: Shenxiu realizes that while she cannot change what her mother did, she can choose to live. Nanhe (representing the part of herself that wants to survive) helps her understand that accepting pain doesn't mean being consumed by it. She chooses to return to reality and face her life., demonstrating the transformation achieved throughout the journey.
Emotional Journey
Deep Sea's emotional architecture traces a deliberate progression across 15 carefully calibrated beats.
Narrative Framework
This structural analysis employs a 15-point narrative structure framework that maps key story moments. By mapping Deep Sea against these established plot points, we can identify how Tian Xiaopeng utilizes or subverts traditional narrative conventions. The plot point approach reveals not only adherence to structural principles but also creative choices that distinguish Deep Sea within the animation genre.
Comparative Analysis
Additional animation films include The Bad Guys, The Quintessential Quintuplets Movie and Fate/stay night: Heaven's Feel I. Presage Flower.
Plot Points by Act
Act I
SetupStatus Quo
Shenxiu, a young girl, sits alone and withdrawn in her blended family home, feeling invisible and unloved as her father focuses on his new wife and baby. Her inner world is grey and lifeless, reflecting her depression.
Theme
A crew member aboard the ship mentions "Sometimes you have to lose yourself to find yourself" - foreshadowing Shenxiu's journey into her imagination to process her grief and pain.
Worldbuilding
Shenxiu's fractured family dynamic is established - her parents are divorced, her mother has disappeared (presumed drowned), and she struggles to connect with her father's new family. She boards a cruise ship for a family vacation, but remains emotionally isolated.
Disruption
Shenxiu falls overboard during a storm, plunging into the dark ocean depths. This near-death experience becomes the catalyst that transports her into a fantastical underwater world - a manifestation of her subconscious.
Resistance
Disoriented and confused, Shenxiu encounters the vibrant Deep Sea Restaurant and its eccentric crew. She meets Nanhe, a debt-ridden sea elf who becomes her reluctant guide. She debates whether this world is real or imagined while trying to understand the rules of this strange place.
Act II
ConfrontationFirst Threshold
Shenxiu makes the active choice to join Nanhe and the crew of the Deep Sea Restaurant in their adventures, embracing this fantasy world as an escape from her painful reality. She commits to seeking the "Deep Sea Spirit" her mother told her about.
Mirror World
Nanhe, the sea elf, serves as the thematic mirror - he too is running from something (his debts, his past). Their growing bond represents the connection and acceptance Shenxiu craves. He shows her wonder and adventure can exist even in darkness.
Premise
The "fun and games" of the Deep Sea world - spectacular underwater adventures with Nanhe and the restaurant crew. Shenxiu experiences joy, wonder, and belonging she never felt in the real world. The animation showcases breathtaking particle-based ocean visuals as they search for the mythical Deep Sea Spirit.
Midpoint
False victory: Shenxiu and Nanhe appear to find clues about the Deep Sea Spirit and her mother. Shenxiu feels closer to understanding her mother's disappearance. But the stakes raise - the fantasy world begins showing cracks, hinting at the painful truth she's avoiding.
Opposition
The fantasy world begins to darken and destabilize. Shenxiu's repressed grief and trauma manifest as threatening forces in the Deep Sea. Nanhe and the crew struggle to protect her as the wonderful world turns nightmarish. Reality intrudes on the fantasy as Shenxiu's unconscious mind battles between escape and acceptance.
Collapse
The devastating truth emerges: the Deep Sea Spirit doesn't exist - it was a comforting lie Shenxiu's mother told her. The fantasy world collapses as Shenxiu confronts the reality that her mother deliberately drowned herself, abandoning Shenxiu. The "whiff of death" - both her mother's suicide and the death of Shenxiu's denial.
Crisis
Shenxiu's dark night of the soul. Overwhelmed by grief, abandonment, and guilt, she nearly gives up and allows herself to drown in her sorrow. The fantasy world threatens to trap her forever in her trauma. She processes the unbearable pain of her mother's choice.
Act III
ResolutionSecond Threshold
Breakthrough: Shenxiu realizes that while she cannot change what her mother did, she can choose to live. Nanhe (representing the part of herself that wants to survive) helps her understand that accepting pain doesn't mean being consumed by it. She chooses to return to reality and face her life.
Synthesis
Shenxiu fights her way back to consciousness and the surface. She integrates what the fantasy taught her - that she deserves love and belonging, that her mother's choice wasn't her fault. She awakens in the real world, rescued from drowning, ready to engage with her family and life.
Transformation
Final image mirrors the opening: Shenxiu with her family, but now she reaches out to connect. Her world has color again. She carries the memory of her Deep Sea adventure (her processed grief) but chooses to live in reality, no longer invisible, ready to accept love.





