After carrying out a flawlessly planned hit, Jef Costello, a contract killer with samurai instincts, finds himself caught between a persistent police investigator and a ruthless employer, and not even his armor of fedora and trench coat can protect him.
- Genre: Crime, Thriller
- Studio: Fida Cinematografica, Compagnie Industrielle et Commerciale Cinématographique (CICC), Filmel, TC Productions
- Keyword: paris, france, jazz, hitman, jazz club, police, treason, stakeout, french noir, last job, professional assassin, neo-noir, very little dialogue, silent protagonist
- Cast: Alain Delon, François Périer, Nathalie Delon, Cathy Rosier, Michel Boisrond, Catherine Jourdan