Five women and five men are lured to a supposed luxury hotel on a remote tropical island off the coast of French Guyana. However, they soon realize that they are the only inhabitants in this secluded place in the middle of the sea. Then, an accusing voice announces over the loudspeaker that no one will survive.

The group realize that they have been lured not for a reality show, but for a crime. When Myriam's body and Kelly's dead dog are found and the tap water poisoned, tensions mount.

Eddy destroys the screen and Xavier is convinced that Eddy must be the murderer. Eddy confesses, but denies the murders on the island. Kelly comes under suspicion when another dies under mysterious circumstances.

Kelly reports a masked figure who attacked her with a knife after finding Eve's body in the sea. Victoria is suspicious of Kelly and suspects her of being the murderer. Xavier is exhausted after searching for water, while Nina and Malik have found water. Victoria overpowers and ties Kelly up in the hotel kitchen, while Nina and Malik catch her drinking the water they have found.

Eve's hat is found, but her body remains missing. After Kelly, Nina and Malik find Victoria's body, Kelly confesses that she no longer trusts anyone. Vincent turns up covered in blood and can't remember what happened. Police officers Mathieu and Baptista track down the guests through a mailbox company and are able to identify the group before finding the island.

Vincent dies before Kelly's eyes and she suspects Nina and Malik. Mathieu and Baptista end up on the island and find the surveillance center to track down the murderer.