One evening, Mady—a young student by day, a locksmith by night—receives an urgent call from Claire asking her to open a lock. But the door the young woman is trying to open isn’t hers, and the bag she’s running away with isn’t hers either. It belongs to Yannick, a ruthless gangster who blames Mady and will stop at nothing to return the stolen goods. Mady has just one night to prove her innocence and save his neck. What starts as a night shift turns into a brutal descent into violence.