Clement goes to Saint Petersburg for a film festival. When he gets there, nobody can hear him and see him. He vanished. He meets Andrei, a gay Russian who lives the same thing.

Hannah, 24, has been in Paris for six months and has partnered with Greg. One night, she goes out with Greg and meets a girl with whom she begins to flirt. They end the evening in bed and make love.

Back in Paris after a year spent abroad, Lenz wanders with melancholy from party to party, balancing on a line of cocaine, seeking for a mysterious young woman: Elena.