After the WWII, a young man without perspective arrives in Rome. Living in a loft, he gradually discovers the city becoming a tour guide.
The unsuspecting Parisian postman Thibon accepts a transfer as army mailman in Indochina. In the hospital, after his mail van is blown up by a mine, he falls in love with his Indochinese nurse Vang.
Alain Revent, a seductive and refined man, derives a peculiar satisfaction from debasing his wives. The first, driven to the brink of despair, throws herself out of a window. Enlisting the help of an equally perverse casual acquaintance, Dino, the "handsome brute" proceeds to emotionally torture his second wife, Nathalie. The sadistic plan is picked up on by Officer Leroy who suspects the truth. ...
Patterning himself after the American gangster John Dillinger, a criminal is tracked by a inspector, a former childhood friend.