A religious fanatic finds his entire life and philosophy turned upside-down as he falls in love with a girl and kills her in a jealous rage. His search is for peace of mind and a desire to justify the murder of the girl to himself. His mind becomes distraught as he gropes trying to rationalize his deed and his world falls apart around him. A police inspector patiently and tirelessly stays on Barrault's trail, without putting him under arrest, though convinced he is the murderer, and waiting for the moment when he feels Barrault will break under the strain of his own religious fanaticism.
| Actor | Role |
|---|---|
 Pierre FresnayLe commissaire Lavan | Le commissaire Lavan |
 Jean-Louis BarraultFrancis Ferriter | Francis Ferriter |
 Viviane RomanceMolly | Molly |
 Louis-Jacques BoucotMonsieur Kelly | Monsieur Kelly |
 Mady BerryMadame Kelly | Madame Kelly |
 Alexandre RignaultLe docteur O'Leary | Le docteur O'Leary |
 Ludmilla PitoëffLa tante de Thérésa | La tante de Thérésa |
| AAlla DonellThérésa Burke | Thérésa Burke |
 Georges FlamantCallaghan | Callaghan |
 Pedro ElviroUn agent de la Sûreté | Un agent de la Sûreté |
| CCharblayNot listed | Not listed |
 Jean TissierNot listed | Not listed |
 Léon BaryNot listed | Not listed |
 Pierre LabryNot listed | Not listed |
 Marcel DelaîtreLe prêtre | Le prêtre |
 Marthe MellotMadame Ferriter | Madame Ferriter |
| GGeneviève SoryaLa gourgandine | La gourgandine |
 Edmond van DaëleNot listed | Not listed |
| PPaul AsselinNot listed | Not listed |
 Maurice MaillotNot listed | Not listed |