Hyacinth, a former matador who lives miserably with his nephew Pepote, receives a letter reminding him that, as agreed a few days before, he must participate in a bullfight to be held that same afternoon.
The owner of a building tyrannizes his immigrant tenants. Transformed into a dog by an old woman's curse, he experiences all the hardships of his situation; when a child's affection turns him back into a man, his soul is radically changed.
Hélène and Aldo Giovanni are a circus trapeze double act and a couple. Aldo is temporarily replaced by former-partner Alexandre when the former is injured. The two get into a fight and the following day Alexandre is discovered dead. Hélène suspects her husband is responsible for the murder.
