A hatter in a provincial town (Michel Serrault) leads the life of a respectable citizen but is in fact a serial murderer. The only person to suspect this is his neighbour the tailor (Charles Asnavour).
Director: Claude Chabrol
Writer: Claude Chabrol
Director of Photography: Jean Rabier
Léon Labbé
Kachoudas, le tailleur
Mme Labbé
Jeantet
Alice Kachoudas
Le sénateur Laude
Arnoult
Berthe