An American talks a retired French crook into robbing a bank, but kidnappers demand the loot as ransom.

Police Commissioner Jules Maigret returns to the small village where he spent his childhood at the request of the Countess of Saint-Fiacre, who has received a disturbing anonymous letter.

Four women were murdered, each was knifed and, though they had their clothes torn, they weren't molested. As the famed police inspector Jules Maigret pieces the clues together, he comes to realize that for the elusive man that he suspects to be unmasked, he has to set him a trap.

Paris, 1482. Today is the festival of the fools, taking place like each year in the square outside Cathedral Notre Dame. Among jugglers and other entertainers, Esmeralda, a sensuous gypsy, performs a bewitching dance in front of delighted spectators. From up in a tower of the cathedral, Frollo, an alchemist, gazes at her lustfully. Later in the night, Frollo orders Quasimodo, the deformed bell ringer and his faithful servant, to kidnap Esmeralda. But when the ugly freak comes close to her is touched by the young woman's beauty...