Mireille Bertillet, a provincial judge, is transferred to Paris. She inherits a heavy file compromising high personalities.

Maurice works at the police service for foreigners. He is single, loves Spanish music and spends all his free time in a Hispanic cabaret.

The town of Carzac Shakespeare suffered a violent attack that caused a fire in the local factory. Many dead and wounded. Two citizens investigate the drama and discover that its origin could be criminal.

Paul, a former womanizer, marries the head of the medical department's "unattractive" daughter Christine because he thinks attractive women can't be trusted and make poor wives. A car accident leaves him bedridden and he begins to miss his playboy days, when Christine's bombshell sister Martine arrives and Paul decides he must have her. He begins drugging Christine at night so he can sneak out to kill of Martine's many suitors one by one.

An official's earlier rise to power had some sordid aspects that are about to be uncovered by the death of his uncle. While he is trying to contain any potential scandal, the man becomes enamored of the daughter of his uncle's maid. This new romance inspires him to forget worries about a public image and focus on a new life -- not any easy objective when unsavory friends and foes have their own agendas in mind.

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.

In a Paris suburb condominium, after the death of a young woman's boyfriend, a strange and deadly game of death begins between three women living there.