The trials and tribulations of a good guy who feels obliged to confess the truth to his wife or his boss every time he makes a mistake.

After his fiancée leaves him, Tom finds himself alone and helpless. He has to wash his clothes himself and so goes to the laundromat. There, he meets a quaint tribe and opens up to a new world and incredible horizons.

A bicycle race is held every year in a pass of the Alps called Parpaillon. With the energy of a skillful cyclist perhaps as a great tribute to François, the mailman played by Tati in The Big Day, Moullet makes a comedy by pedaling at a pace that allows him to reinvent the possibilities of film gags. La Cabale des oursins is a guided tour to the northern France, transformed into a Geography lesson in the pataphysical style of an Alfred Jarry disciple.