Épisode 1

On the evening of December 31, 2023, Marc, a star surgeon at the Provence hospital, was found murdered at his workplace. As they leave the crime scene, Anna, his ex-wife, Cédric, his best friend, and Lieutenant Juliette Kharoub find themselves stuck in the same elevator. Midnight passes. When the doors open again, Anna, Cédric and Juliette realize that they have been taken back a year, to January 1, 2023.