After five years in the army, Valentin Brû marry a haberdasher. They move to Paris, where Valentin sells frames, while his wife becomes fortune teller. One day, Valentin replaces her, and predict a terrible event which will happen.

Shy, timorous bank clerk, Fernand Jérôme, prevents -unwillingly of course - a gang led by "Le Grand J" from robbing the "Crédit Populaire", where he works. Having become a hero out of the blue, this new status allows him to woo Renée, the daughter of chief inspector Merlerin. What Merlerin does not know is that the man he has been trying to arrest for years, "Le Grand J" is in fact Joseph Jérôme, Fernand's father, who has disappeared for years...

Robert Langlois is now married to Catherine, the former housemaid. And they would live happily ever after if the housing crisis did not force them to live together with Gabrielle and Fernand, Robert's parents. For, despite the good will on either side, tension soon arises. What else to expect when there is too little space in their Montmartre apartment for four people (then for six then eight, the couple having... two pairs of twins!) ; the continued presence there of Fernand (who loves peace and quiet) after he is driven to retirement ; the difficult beginnings of Robert as a lawyer in a room of the apartment, etc... Other troubles follow and the harried family is on the verge of implosion...

The residents of the apartment building on Rue Montmartre are a motley crew of oddballs and eccentrics. The daring son of a professor couple is in love with a sexy student who supplements her pocket money by working as an au pair. And then there's Monsieur Calomel, the crazy but helpful neighbor who's always ready with a funny face...

The short stories of Guy de Maupassant enjoyed a renaissance in the early 1950s, thanks in great part to the Max Ophuls production Le Plaisir. In Trois Femmes, three De Maupassant stories are dramatized, each conveying the central theme of women falling in love. In the first, a black female carnival entertainer causes an uproar when she falls in love with a white soldier. In the second, a young bride is pressured into having a baby to collect a huge inheritance. And in the final episode, a pregnant girl is "adopted" and protected by a small circle of friends. In standard De Maupassant fashion, each of the three stories in Trois Femmes is capped by a surprise twist.

In the 1950s, in a small provincial town, a young inexperienced judge clashes with an influential notable during an investigation into a suspicious death. His perseverance to get to the truth will cause a huge scandal.