In a small mountain community, teenager Camille, and Simon - who both died years earlier - suddenly re-appear at their homes. They have not aged, and they are completely unaware of their own deaths.

Simon approaches Adele, but Thomas finds out about his 'return'. In the meantime, Camille is unable to fit back into her family again.

Determined to come out of hiding and return to something resembling normal life, Camille invents a new identity for herself as 'cousin Alice'. Julie's dark past threatens to destroy her.

Camille's new identity as Alice is going well, but Léna's scar is growing and seemingly draining her of energy. Julie can no longer keep Victor under wraps and the police take him away.

The dead gradually come out into the open but are unable to resume their normal lives. Camille is rejected by Frédéric, and Simon is abruptly separated from Adèle and Chloe.

A power cut affects the town. Pierre forms a community around Camille, who is now seen as a prophet. Julie finds refuge at Laure's house with Victor, whose body is undergoing a strange transformation.

Various clans are starting to form in the town. Simon investigates the circumstances surrounding his first death, and Julie and Laure want to run away with Victor, but nobody seems able to leave.

Relations are strained between the living and the dead. The living deeply fear the dead, especially as a newer and more sinister wave of them enters the town.