While going to a New Year's Eve party with friends, Isabelle is assaulted by ... a Christmas tree in search of freedom. She manages to escape and is admitted to hospital. She is taken for a madwoman, until the tree finds her, determined to take revenge...

Etienne is a young man whose girlfriend Solveig asks him to spend the night away from her apartment. He meets with his friend Bip, and the pair takes a strange pill ordered online that throws them into a repetitive time loop.