Félix et les lois de l'inertie (2011)

A young hot-head called Mendel one day opens the door to his bathroom only to discover that it enables him to enter the apartment of two complete strangers : Felix and Leyla. At first, Mendel watches Felix and Leyla secretly, but they're a couple experiencing difficulties and after a while he decides he wants to help them. Mendel manages to control his body and mind in such a way that he succeeds in becoming part of the couples present and future. He contacts Felix and informs him of the things he has learned. Together, they try to prevent what is happening. But whatever they do, and plan, the predicted events still come to pass and Leyla gradually drifts away from Felix. The range of possibilities narrows. Events seem to be stronger than Mendel and the two boys don't have enough time to rectify a script that seems more and more inevitable. Leyla evaporates out of reach from the reality constructed by the two apprentice sorcerers. Felix and Mendel have one last solution: to return to the moment they first met and prevent them meeting.