A bus conductor gets dressed for work in the morning, goes to the toilet, where he is killed by a bomb. The Commissioner and his fat, bumbling assistant, Inspector Charbonnier are put on the case. After interviewing friends, wives, colleagues, and spying on strangers who might be connected, our heroes trace the assassin down to a mental institution where, it seems, the murder victim has been an inmate for the last three years...
Coluche
as L'inspecteur Charbonnier
Jean Rochefort
as Le commissaire Pichard
Roland Dubillard
as Gazul
Danièle Evenou
as Gwendoline
Robert Berri
as René
Jean Luisi
as Barbocelli
Billy Bourbon
as Joseph Ordure
Olga Valéry
as La mère du médecin
Robert Dalban
as L'entraîneur
Virginie Vignon
as Odette Jeandrin
Jean-Pierre Sentier
as Le psychiatre
Ellen Bahl
as Mme Piazzorossicelli
