A Belgian village is struck by repeated flooding, all this because they lack a new sewer. But the Ministry delays in providing the funding needed to build it. To alert public opinion, the villagers decide to do something. This "something" will be a play describing the life of their saint patron. Trouble follows, partly fueled by the short-tempered mayor.

The film follows a prison warden (played by Charles Janssens) who is utterly miserable because his prison is empty. When Max (played by Paul Cammermans) is mistakenly arrested for murder, the warden is thrilled to finally have a "guest." A delightfully absurd situation ensues, with the warden looking after his prisoner like a doting father. In the end, Max is proven innocent and marries the warden’s daughter. Based on the play of the same title by Jos Janssen.

Jonny loves Jessy, but he likes his car even more and therefore Jessy breaks up with him.