The Samejima Incident (2020) — AI Story Visualization

Plot Analysis Summary

An online reunion becomes a struggle to understand and escape a curse that spreads through knowledge of a brutal killing.

Story Structure — 4 Plot Phases

A Reunion Invites the Legend

Nana reconnects with old friends online during the pandemic. Their conversation and a video about abandoned buildings introduce the Samejima legend.

Key Events

• Pandemic Video Reunion — Nana reunites online with old friends during the pandemic. Characters: Nana Sasaki, Ryo Location: Online video call
• Abandoned Building Footage — The group watches footage about exploring abandoned buildings. Characters: Nana Sasaki, Ryo Location: Online video call
• Samejima Legend Discussed — The friends hear about the internet legend called the Samejima Incident. Characters: Nana Sasaki, Ryo Location: Online video call

The Curse Enters Their Rooms

A friend warns that a curse will kill her and later dies. The survivors become trapped, see strange figures on calls, and encounter a manager who dismisses their account.

Key Events

• Friend Warns of a Curse — A friend warns that a curse will kill her before she dies. Characters: Nana Sasaki, Ryo Location: Online video call
• Survivors Trapped Indoors — The surviving friends cannot leave their rooms or contact the police. Characters: Nana Sasaki, Ryo Location: Their rooms
• Figures on the Calls — Strange figures appear during the friends' video calls. Characters: Nana Sasaki, Ryo Location: Video calls
• Manager Rejects Their Account — A building manager refuses to believe the friends' claims. Characters: Nana Sasaki Location: Apartment building
• No Body Found — The manager finds no body where the friends say someone was present. Characters: Nana Sasaki Location: Apartment building

The Legend's Hidden Rules

The friends piece together the history of Samejima's killing at Hakufuuen and the curse's spread through footage and knowledge. Photographs suggest that a route and a particular door may offer a way to stop it.

Key Events

• Hakufuuen Killing Revealed — The friends learn that Samejima was brutally killed in the abandoned building. Characters: Nana Sasaki, Ryo Location: Hakufuuen
• Curse Spreads Through Footage — They learn that people who watched or shared the killing footage were cursed. Characters: Nana Sasaki, Ryo Location: Online
• Knowledge Carries the Curse — The friends realize that learning about the incident can spread the curse. Characters: Nana Sasaki, Ryo Location: Online
• Photographs Reveal a Route — Photographs appear to map a route through the building. Characters: Nana Sasaki, Ryo Location: Unspecified room
• Closing the Door Proposed — The friends suspect that closing a particular door could stop the curse. Characters: Nana Sasaki, Ryo Location: Unspecified room
• Route Requires Exact Order — Reaching the door requires visiting the photographed locations in sequence. Characters: Nana Sasaki, Ryo Location: Photographed locations

A Dangerous Route Forward

Ryo confronts the threat in his room and disappears into danger. Nana's brother arrives, and she guides him through the route using clues associated with the sins as the curse closes in.

Key Events

• Route Requires Exact Order — Reaching the door requires visiting the photographed locations in sequence. Characters: Nana Sasaki, Ryo Location: Photographed locations
• Ryo Confronts the Threat — Ryo confronts the threat in his room to prove the curse is real. Characters: Ryo Location: Ryo's room
• Ryo Disappears into Danger — Ryo disappears into danger, increasing Nana's fear that they will not survive. Characters: Ryo, Nana Sasaki Location: Ryo's room
• Brother Arrives to Help — Nana's brother arrives outside and offers a possible way to help. Characters: Nana Sasaki, Onii-chan Location: Outside Nana's room
• Nana Guides the Route — Nana guides her brother through rooms using the clues from inside. Characters: Nana Sasaki, Onii-chan Location: Rooms linked by the route
• Three Sin Clues — They begin with clues associated with arrogance, gluttony, and lust. Characters: Nana Sasaki, Onii-chan Location: Rooms linked by the route
• Final Door Outcome Uncertain — The curse closes in as they continue toward the final door, with the outcome uncertain. Characters: Nana Sasaki, Onii-chan Location: Route's final door

Story Breakdown

• Online Reunion — Nana reconnects with old friends during the pandemic, and their call introduces abandoned-building footage and the Samejima legend.
  • Pandemic Catch Up — Nana and old friends meet through an online call.
  • Legend Introduced — The group hears about the Samejima Incident after watching exploration footage.
• First Curse Signs — A friend's warning and death transform the legend into an immediate threat for the survivors.
  • Death Warning — A friend says the curse will kill her before she dies.
  • Rooms Become Traps — The survivors cannot leave or contact the police.
• Unseen Apparitions — Strange figures appear on calls, while an outside observer refuses to accept the friends' account.
  • Figures on Calls — The friends see strange figures during video calls.
  • Manager's Doubt — The building manager rejects their claims and finds no body.
• Curse History Uncovered — The friends trace the legend to the killing at Hakufuuen and learn that its curse reaches beyond the original perpetrators.
  • Hakufuuen Killing — They learn Samejima was brutally killed in the abandoned building.
  • Footage Spreads Danger — Watching or sharing the event's footage can bring the curse.
• Knowledge Becomes Risk — The friends realize that even learning about the incident can transmit the curse.
  • Speaking Is Warned Against — Online discussions caution people not to speak about the incident.
  • No Safe Distance — Knowing the legend itself may expose people to the curse.
• Photographs Map Escape — Photographs suggest a sequence through the building and point toward a door that may stop the curse.
  • Route in Photographs — The images may map locations that must be visited.
  • Door as Possible Remedy — The friends suspect closing a particular door could stop the curse.
• Ryo Faces the Threat — Ryo attempts to prove the curse is real by confronting the danger in his room, then disappears into it.
  • Confrontation in Room — Ryo confronts the threat directly.
  • Ryo Disappears — His disappearance heightens the survivors' fear.
• Nana Guides Her Brother — Onii-chan arrives outside and Nana directs him through the route while the curse continues to close in.
  • Brother Offers Help — Onii-chan arrives outside Nana's room with a possible way to help.
  • Three Sin Clues — Nana begins guiding him through clues tied to arrogance, gluttony, and lust.

Directed by

Jirô Nagae

Key Cast

• Rena Takeda — Nana Sasaki
• Sakurako Konishi — Fumi
• Shogo Hama — Ryo
• Karasu Hayashi — Yuuki
• Moe Tsurumi — Suzu