Pol is a teenager with a seemingly calm life. He lives with his brother, and is still in high school. However, Pol has a secret: Deerhoof, a cuddly teddy bear who thinks, moves around, and with whom he shares his best moments. Life goes on as normal until the arrival of Ikari, an enigmatic student who seems to be hiding something. Pol is fascinated by his new classmate and attracted to the dark side he harbors. An inexplicable death and a series of strange events will transform the meek student's routine into a fantastic adventure, which will take over their lives.

The head girl Justine gives a speech on the funeral of the teenage schoolmate Darren Mullet that has just committed suicide but she does not recall who he was. Then she is invited by Alexis to date him in the celebration party in the house of his friend Bradley. Sooner Justine discovers that Darren had a crush on her and was bullied by Bradley and his friends including Alexis. When each one of Bradley's friends is found dead, they discover that Darren has returned from beyond to revenge the humiliations he was submitted.