Five rather frivolous musicians seize the opportunity to perform on a cruise in the Mediterranean. Alas: they are under contract to engage a female singer - and they fear to fall in love with her, which would endanger their friendship.

There is a beautiful windmill near Winkelbroek. The miller is Wannes Coppens, someone who knows all the ways, but especially the detours, to achieve his goal. He is particularly proud of his son Antoon. He is a teacher, conductor of the brass band, painter... and has the reputation of being the biggest joker in Winkelbroek. Through Antoon's marriage to Louisa from the brewery, the miller hopes to regain possession of a piece of land. But the old brewer is unyielding. Wannes then takes a detour via the 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.

Sequel to the hugely popular folk comedy Janssens versus Peeters.