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.
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.
A trucker encounters a dead body on the road home. He reports the incident to the police, who suspect that Jean was responsible for the death, and his new truck is impounded. To make matters worse, the man's widow accuses him of having robbed her husband, and a gang of sinister crooks are also harassing him.
