An island in the Mediterranean is hit by an unprecedented fishing shortage and a string of suspicious deaths. These events coincide with the arrival of a mysterious stranger, Théa, rescued at sea, who will change the life of young Chloé.

When the Diallo family return home from their holiday, they find the locks have been changed and the new occupants maintain they are in "their home". With no one to turn to, patriarch Paul gets closer to Mickey, a shady local man with a penchant for all things extreme and illegal. Soon the once anti-violent teacher is approaching the point of no return…