Martin Morel wants to spend Sylvester with both his wife and family and his girlfriend Agnes. So he asks his clumsy friend Bertin to pretend she'd be his wife. But the two can't stand each other... at first.
After World War I, a young ex-soldier, Sébastien Monge, returns to his home village. Ignorant of his past, he learns that, 24 years before, his entire family was slain in their home one stormy night. Only Sébastien, then a four-month old baby, was spared. Whilst Sébastien is being seduced by Charmaine, Dupin is killed by someone else. Sébastien’s next victim, the miller Didon Pujol, is also murdered before he has a chance to take his revenge. Sébastien realises that someone is watching his every move and is going to extraordinary lengths to protect him. But who, and why..?