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.
Le chef du chantier
André Fragman, nicknamed "Fairbanks" after his childhood idol by his film projectionist father, returns home from military service. He meets and falls in love with Marie, an aspiring actress who is rehearsing for a stage production of 'Alice in Wonderland'. All his attempts to find a job and a way out end up in failure, his friends Étienne and Jean-Pierre are powerless to help him, and the dreamy yet desperate hero loses his mind.
A bus conductor gets dressed for work in the morning, goes to the toilet, where he is killed by a bomb. The Commissioner and his fat, bumbling assistant, Inspector Charbonnier are put on the case. After interviewing friends, wives, colleagues, and spying on strangers who might be connected, our heroes trace the assassin down to a mental institution where, it seems, the murder victim has been an inmate for the last three years...
Le policier
Victor Vautier is incorrigible: he's in constant motion, working several cons at once, using different names and changing disguises. He's charming and outrageous, incapable of uttering a sentence that isn't embellished or an outright lie. His life goal is to make enough money to build a sea wall to protect Mont-Saint-Michel. Charlotte, a parole officer, shows up: she's young and seems taken in by Victor. He discovers she lives above the Senlus Museum, where her parents are the curators. With two pals he decides to steal a priceless El Greco triptych and then ransom it back to the cultural ministry. What will Charlotte do when she realizes he's used her to make a fortune?
Having escaped from prison Ristack contacts his partner, to organize an attack on a van full of gold. The heist goes well but each man is trying to keep all the loot for himself...
The Plot focuses on Dante Alighieri, a young man who loves smoking. When his father dies Dante inherits $17 million on one special condition: He must give up smoking in 14 days and then stay smoke-free for an entire year. If he fails, his uncle inherits the $17 million instead. Dante has a living hell while trying to quit, and hires a private detective agency called Little Secret Service who he gives free hands to stop him from smoking, While his uncle, who has taken up smoking himself, also does everything he can to make Dante smoke again.