Stephane (Victor Lanoux) is the mayor of a small village. He is also the manager of the tannery which provides the inhabitants with work. In a fit of anger, he kills his wife (Edith Scob). A judge (Jean Carmet) tries to prove his culpability, but it's not an easy task, because there is a political and social pressure.

A renowned conductor suddenly pulls out of an evening rehearsal of Madame Butterfly. The opera director senses something is going on and forces the musician to explain himself.

Les Bidasses en Folie, a french movie from 1971, is a very short, easy to watch, slapstick hippie comedy.