After receiving a tip from a barber friend, Emilio bets on a horse and wins a considerable amount of money. To celebrate, he invites his small group of friends, the barber, and "the doctor" - a mysterious underworld crime figure much older than the others. It is Carnival season, and they all party together for 3 days. At the end of this period, Emilio wakes up in a strange place, and cannot remember all that happened. But a terrible, recurring dream suggests that his memory is failing him, and he must find out what these awful events are. He consults an elderly man known for his psychic powers, and both the man and his daughter (with whom Emilio falls in love and marries) advise Emilio not to continue his search for that possibly life-threatening forgotten truth. But the advice does not detain Emilio. Three years later, Emilio goes to the same barber shop, and gets another winning tip from another barber. It is also Carnival time, and Emilio decides to invite the same group again to ..