Dr. Cordelier, living in a suburb of Paris, withdraws from society to pursue research into the functioning of the human brain. His lifelong friend, Maître Joly, becomes concerned when Cordelier draws up a will that bequeaths his entire estate to a stranger, Monsieur Opale; he cannot understand why Cordelier defends him, considering Opale attacks women and children. After a colleague is killed, Joly confronts Cordelier and discovers the truth behind his friend's behavior.

Dr. Cordelier / Opale

Joly

Dr. Lucien Severin

Boss of the Short-Time Hotel

First Passer-By during the Aggression

Second Passer-By during the Aggression

Désiré, Butler

Alberte

Juliette

Georges, Chauffeur

Mary, Maid

Cripple
July 4, 1960

Dr. Cordelier / Opale

Joly

Dr. Lucien Severin

Boss of the Short-Time Hotel

First Passer-By during the Aggression

Second Passer-By during the Aggression

Désiré, Butler

Alberte

Juliette

Georges, Chauffeur

Mary, Maid

Cripple
