By the Blood of Others

L’Agence O is a famous Parisian private detective firm. Its premises are located in the Passage Choiseul. In front, Torrence leads the shop. In fact, the agency's team is complemented by Émilie le Roux, Mademoiselle Berthe and Barbet, who scrutinize clients through a one-way mirror located behind the desk. Getting hold of a man disguised as an old lady, solving the mystery of the Prisoner of Lagny or discovering who is blackmailing the painter Tigrane Alban does not worry the experts at the O Agency. Les Dossiers de l’Agence O is a French-Canadian television series in thirteen episodes of approximately 55 minutes created by Marc Simenon and broadcast first in Quebec from December 14, 1967 to March 13, 1968 on Télévision de Radio-Canada, then in France from March 11 to June 3, 1968 on the first channel of the ORTF.

Victim of a traffic accident that costs her life, Laura, a call girl, resurfaces on Earth as an overwhelmed mother, Lucie.

Four little girls flee the cold concrete world of the housing project they live in, take refuge every evening in a house on an island in the middle of the Marne River. It is secret hideaway that no one should trespass. Unfortunately a big girl reveals everything to the schoolmistress and scandal breaks out. But it is Sophie, the youngest of the group, who gets suspected by her..."friends".

The ambitious police officer Cruchot is transferred to St. Tropez. He's struggling with crimes such as persistent nude swimming, but even more with his teenage daughter, who's trying to impress her rich friends by telling them her father was a millionaire and owned a yacht in the harbor.

Sergeant Cruchot and his faithful comrades have been sent to the International Congress of Gendarmerie in N.Y.

Galois is practicing shooting in preparation for a duel the very next day. His last night.

A young physician becomes lonely when his workaholic wife ignores him to concentrate on her professional career. He is befriended by an older female artist who is fond of hallucinogenic mushrooms. When his wife is late for their anniversary celebration, he drinks and takes mushrooms with the artist. He wakes up to find she has died and is fearful he may have accidentally killed her.

The notorious and mysterious criminal Furax steals France's famous monuments, replacing them with replicas.

A young peasant named Pierre makes friends with John and his sister Sonia, young bourgeoisie, who invite him to their home. Pierre soon falls in love with Emily, John's mistress. After the death of the father of his hosts, he has the idea of ​​transforming their peaceful house into a brothel.

Albert is the irremovable waiter in a small bistro that has just been sold by his former bosses, Angèle and Léon. Angèle, having forgotten the ten million paid by the notary in a cab, prefers to feign madness rather than incur her husband's wrath; but Léon, in turn, eventually learns what has happened to his money, goes mad and kicks out the honest cab driver who comes to return the lost sum. A phone call from the police station later informs Albert that the money is at his boss's disposal; but as the boss is now in an institution, Albert borrows his identity papers and goes to collect the money - which he pays in full to the pari-mutuel betting house. After a series of shocks and counter-shocks, Angèle and Léon regain their senses enough to watch for the outcome of the race, and share with Albert the final winnings, which are very substantial.

A jewel thief hides his loot in a WELL while escaping. He returns several years later only to find there is a Resort on the site and the well is the centerpiece of the place. He then has to find a way to retrieve his haul.