Set between Christmas and New Year, the film told the story of six criminals who kidnap an ambassador's daughter and await the ransom; enter Monsieur Wens, who infiltrates their hideout using various comic disguises, bumps them off one by one and rescues the little girl.

Guillaume Dodut is a stationmaster in rural France at a station where trains no longer stop. His dream has always been to holiday in the famous resort town of Biarritz. Meanwhile, he gets involved in the romantic life of his son who is studying to be an engineer in London.

Yan, who has just been acquitted of a crime he has not committed, returns to his Flemish village, where he meets hostility, particularly from Franz, the garage owner. Fortunately, Gus, his childhood friend refuses to follow the pack and talks his mother, the richest person in the area, into getting him a job. But Yan is soon drawn to Maria, the sultry girl Gus lives with.