Four friends go to a party before the Christmas holidays; but Vinca cancels and later, in distress, calls Thomas.

Thomas and Max visit Francis to tell him the police have found Clement's body; Francis says he has engaged a Russian gang to recover the evidence.

Francis is kidnapped; Fanny admits that Vinca asked her to take pictures to blackmail Richard.

We go back 25 years and finally experience the events from Vinca's point of view; back in the present, Annabelle confronts DeVille with a gun about the attacks on Francis, Ahmed and Max.