When Emily, a struggling baker in a small town, receives a handmade Christmas Calendar from a secret admirer, the local residents become obsessed with finding out the identity of the sender.

Eva, an ex-dancer, is now living in a wheelchair, unable to walk. When her friend Sophie gives her an old wooden antique advent calendar before Christmas, she realizes each window contains a surprise that triggers repercussions in real life: some of them good, but most of them bad… Now Eva will have to choose between getting rid of the calendar or walking again… even if it causes death around her.