The "black robe" in the title of this suspense film belongs to a female lawyer, Florence Nat who has just lost a case in which she defended Simon Risler, a man wrongly accused of murder. Risler escapes before he can be put in prison, and seeks help from attorney Nat in finding the real killer, partly by going after the police inspector who framed him in the first place. A retired surgeon, in the process of setting up a drug rehab clinic gets involved in solving Risler's case, and soon the solution seems to be pointing to high-ranking figures with every desire and ample means to keep the truth well-hidden.
as Florence Nath
as Simon Risler
as Alain Rivière
as Lucien Lebesque
as Mrs. Reynolds
as Florence's friend
as Prosecutor
as Robert
as Young drug addict on the motorbike
as Young drug addict
as Architect
as Photographer's wife
as Reynolds father
as Inspector Reynolds
as François Riesler
as Young drug addict
as Prefect
as Young drug addict
as Gendarme
as Journalist
as Judge
as Minister
as Pradès