Story Structure — 5 Plot Phases
A Camp Without Contact
Hwa is murdered before three couples arrive on the island. The campers hide their phones and encounter Boar's suspicious group.
Key Events
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Hwa Is Killed — Hwa and his girlfriend are killed by a bandaged chainsaw-wielding man. Characters: Hwa
Location: Secluded island
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Campers Reach Island — Three couples arrive by boat to camp on the island for three days. Characters: Professor, Ken, Winnie, Be Be, Boar, Mi Mi
Location: Island shore
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Phones Are Hidden — Soldier collects the campers' phones and hides them so the group will not be disturbed. Characters: Ken, Winnie, Professor, Be Be
Location: Island campsite
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Phones Disappear — Someone takes the hidden phones after Soldier leaves the hiding place. Characters: Ken, Winnie, Professor, Be Be
Location: Phone hiding spot
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Boar's Group Arrives — The campers encounter Boar's group, who claim to be salesmen. Characters: Boar, Mi Mi, Pervert, Blowie, Ken, Winnie
Location: Island campsite
The Island Answers Back
Boar's group is exposed as smugglers searching for Hwa. Their encounter with the deformed boy provokes the bandaged family.
Key Events
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Smuggler Motive Revealed — Boar and his associates are revealed to be smugglers searching for Hwa. Characters: Boar, Mi Mi, Pervert, Blowie, Hwa
Location: Island camp
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The Boy Catches Fire — Pervert and Blowie accidentally urinate on the deformed boy and set him on fire. Characters: Pervert, Blowie
Location: Island forest
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Pervert Is Captured — The deformed boy and the bandaged man capture Pervert and dismember him. Characters: Pervert
Location: Island forest
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Boar and Mi Mi Taken — The bandaged man captures Boar and Mi Mi and takes them to his home. Characters: Boar, Mi Mi
Location: Island forest
Traps Around The Camp
Pervert, Boar, Be Be, Soldier, and Blowie are successively drawn into the killer's violence. The campers lose control of the island.
Key Events
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Boar and Mi Mi Taken — The bandaged man captures Boar and Mi Mi and takes them to his home. Characters: Boar, Mi Mi
Location: Island forest
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Mi Mi Is Killed — Mi Mi knocks the boy away, enraging the bandaged man, who kills her. Characters: Boar, Mi Mi
Location: Bandaged man's home
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Boar Hits Punji Trap — Boar escapes the house but triggers a tripwire and is impaled by punji sticks. Characters: Boar
Location: Outside the killer's home
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Body Found Near Camp — Linda and Be Be discover Boar's body while going to wash dishes. Characters: Be Be
Location: Island washing area
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Be Be Is Captured — The bandaged man captures Be Be after she and Linda find Boar's body. Characters: Be Be
Location: Island forest
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Soldier Enters The Lair — Soldier searches for Be Be, finds the killer's lair, and is killed with his own knife. Characters: Be Be
Location: Killer's lair
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Blowie Searches Alone — Blowie leaves alone to search for a cell phone lost earlier. Characters: Blowie
Location: Island forest
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Be Be Is Decapitated — After losing the campers, the killer returns home and decapitates Be Be. Characters: Be Be
Location: Killer's home
A Desperate Rescue
The remaining campers separate after a fight, but Professor and Ken locate the killer's home and rescue the captured girls. Their escape costs Professor his life.
Key Events
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Campers Become Separated — A fight breaks out among the remaining campers, separating the group. Characters: Ken, Winnie, Professor
Location: Island campsite
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Girls Are Rescued — Professor and Ken follow the boy, find the home, and rescue Winnie and Linda by taking him hostage. Characters: Ken, Winnie, Professor
Location: Killer's home
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Punji Trap Resets — Professor triggers the reset punji sticks, killing himself and the boy during the escape. Characters: Ken, Professor
Location: Escape route
Victory With A Shadow
Ken and the girls trap the bandaged killer, but his wife launches a final attack. Ken and Winnie escape by boat as the wife's hand rises from the water.
Key Events
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Killer Enters The Snare — Ken and the two girls lure the killer into a snare that swings him into spikes in a tree. Characters: Ken, Winnie
Location: Island forest
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Linda Is Attacked — The killer's previously unseen wife appears and cuts Linda's throat with the dropped chainsaw. Characters: Ken, Winnie
Location: Island forest
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Wife Falls From Cliff — The killer's wife chases Ken to a cliff, where he knocks her off. Characters: Ken
Location: Island cliff
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Survivors Reach Boat — Ken and Winnie return to camp and board the arriving boat. Characters: Ken, Winnie
Location: Island shore
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Hand Rises From Water — The wife's hand emerges from the water and grabs the side of the boat. Characters: Ken, Winnie
Location: Boat beside the island
A psychotic family kills people that trespass on their own lonely island.