Almost 19-year-old Marius feels himself in a rut in Marseille, his life planned for him by his cafe'-owning father, and he longs for the sea. The night before he is to leave on a 5-year voyage, Fanny, a girl he grew up with, reveals that she is in love with him, and he discovers that he is in love with her. He must choose between an exciting life at sea, and a boring life with the woman he loves. And Fanny must choose between keeping the man she loves, and letting him live the life he seems to want.

Three criminals plan to break out of prison the day before their release in order to carry out a daring jewel robbery, intending to establish the perfect alibi by returning to jail afterwards. First however they must get out, a task made more difficult by a new, stricter prison officer.