Whilst being transferred to a psychiatric hospital, a ruthless serial killer Gassot makes a break and goes on the run. He arrives in Marseilles, intending to escape abroad. Here, he falls for a young prostitute, Gerda.
Jean Gabin
as Commissioner Le Guen
Fabio Testi
as Georges Gasset
Uschi Glas
as Gerda
Bernard Blier
as François Tellier, director of the PJ
Ginette Garcin
as Lulu
Félix Marten
as Campana
Gérard Depardieu
as Frédo Babasch, the sheep
Jean Barney
as The young inspector
Jacques Debary
as The Commissioner of Marseille
Sady Rebbot
as Lucien, from Grenoble
Ermanno Casanova
as Nurse
Jacques Richard
as François Gassot
