Alphonse Tram is unwittingly involved in several murders despite having no memory of committing the crimes. His confusion lead him to confess to his neighbour, Inspector Morvandieu. Alphonse and Morvandieu become the axis around which murders occur.
Gérard Depardieu
Alphonse Tram
Bernard Blier
Inspecteur Morvandieu
Jean Carmet
Le vieil assassin
Michel Serrault
Le comptable
Geneviève Page
Geneviève Léonard
Jean Benguigui
Le tueur à gages