A French National Treasury van is assaulted and they steal the gold bullion it was carrying. According to confidences received by the Police Headquarters of Barcelona, it seems that part of the gold is clandestinely introduced into Spain through the Pyrenees. In order to discover and eradicate such smuggling infiltration, an agent pretends to be a day laborer at a farm located on the border and in a suspicious area.

Marcel Farnoux, an industrialist, lives with eight women: his wife, his two daughters, his mother, his sister-in-law and two maids. One night, he is found dead, shot through the heart. Inspector Duret has a hard time unmasking the killer from among his eight suspicious wives.

Ricardo will try his luck in the capital after winning an amateur singing contest. He has many adventures. Kidnapped by gangsters, he is only freed by the intervention of his fiancée. Finally, the director of the "Folies Parisiennes" presents him with a contract.

Pépé la Vache, who coveted Fernande's love, denounced her protector: Dominique le Corse, who was arrested. But Fernande was attracted by Jesus the Quail, a guy of dubious manners. Intimidated by Pépé, the Quail moved away.

A woman disappears after visiting her daughter and realizing her presence was unwelcome by her in-laws. Some time later, a body is found in a nearby lake.

Pierre can no longer pay for his medical studies and disappears for several months. During his absence, his fiancée allows herself to be courted by a reveler. Back home, Pierre cannot regain the trust of the young woman, who now leads a dissolute life of which she is ashamed. She tries to kill herself. Pierre saves her and heals her.