Upon arriving at the building where he works, Pedro finds the janitor, Hilário Garcia, dead inside one of the elevators. Inspector Canovas, in charge of the case, discovered that Hilário was Portuguese, widowed, with an only child living in the United States. Several suspicious people are detained and interrogated and, during the investigation, a guard and a girl are killed. With the help of the North American police, Inspector Canovas discovers that Hilário's son, Antônio and his wife Vanda, had already returned to Brazil. The two are located in São Paulo and detained for investigation. At the police, Antônio confesses to Carlos, his brother-in-law, that he was responsible for his father's death. Based on these statements, Canovas concludes that the caretaker was murdered because he discovered that his son and brother-in-law made a living from various suspicious businesses and were acting outside the law.

A young couple, Rodrigo and Aimé, who love each other deeply and possess everything to achieve full happiness, are hit by fate: She suffers an accident and becomes paralyzed.

A scientist discovers a breakthrough formula for harnessing nuclear energy and becomes the target for numerous secret agents around the world.

Young prostitutes are taken to a penal school run by a group of nuns so that they can recover. However, the current mother superior is actually a mad assassin who killed the real one and took her place, changing the entire treatment and discipline regime of the boarding school.