"Two friends, Commissioner Servolle and real estate developer Faguet, see their friendship tested by the investigation carried out following the murder of Faguet's wife."
Claude Brasseur
as Le commissaire Servolle
Jean-Louis Trintignant
as Louis Faguet
Jean-Paul Roussillon
as Le juge d'instruction Dauzat
Patrice Kerbrat
as Le commissaire Ensor
Éva Darlan
as Solange Servolle
Béatrice Camurat
as Eulalie Pierce, dite Lalie
Jean-Pierre Bernard
as Jean Jousselin
Peter Bonke
as Franck
Alain Claessens
as Jean-Pierre, l'avocat
Greg Germain
as Greg, le peintre
Jacques Giraud
as Roland
Alain Lenglet
as L'avocat de Faguet
Jean Le Mouël
as Henri, l'ébéniste
Jean Message
as Henri, le typographe
Jean Morino-Ros
as Aldo
Noëlle Châtelet
as La sociologue
Jacques Boudet
as Le psychiatre
Roland Giraud
as Benedetti
Irina Grjebina
as La dame en fourrure
Serge Sauvion
as Le Glohennec
Elisabeth Huppert
as Sylvia Faguet
Jean Carmet
as Kreps
Luc Delhumeau
as Le brigadier
Guy Di Rigo
as Le peintre
Gérard Uzès
as L'inspecteur
Bernard Waver
as L'avocat de Kreps
Nella Barbier
as La troisième victime (uncredited)
Georges Conchon
as Le médecin (uncredited)
Grégoire Gromoff
as Le chauffeur (uncredited)
Paula Warner
as La première victime (uncredited)
Vladimir Cosma
Original Music Composer
Dominique Besnehard
Casting
Albina du Boisrouvray
Producer
Jean-Paul Schwartz
Director of Photography
Nicolas Ribowski
Director
Alain Artur
Unit Manager
Muriel Baurens
Key Makeup Artist
Writer
Georges Casati
Production Manager
Willy Holt
Production Design
Michèle Cambon-Brasseur
Hairstylist
Jannick Roda
Pierre Gillette
Editor