Lady Lorraine Lister, a financer of expensive experiments, has discovered a way to obtain pure diamonds by the means of a radiation device. She hires five renowned scientists to participate in additional experiments regarding this new contrivance. However, it soon happens that the device is stolen, and the scientists mysteriously disappear! Agent Dick Smart is called in by the CIA to track down the scientists and recover the device. With the help of incredible gadgets and lots of bravado, he manages to locate the source of an underground operation in Rio De Janeiro: an operation headed by a mysterious man with a speaking device fastened to his throat.

Womanizing dentist takes his wife for a vacation in Petrópolis, Brazil. In their hotel, a woman dressed in white visits the room of a different man each night, causing trouble.

General's daughter, who lives with her boyfriend without being married, gets in trouble when her conservative father decides to visit her. A friend decides to help them, but things only get worse.

Pra Quem Fica, Tchau tells the story of a teenager from the interior who comes to Rio, financed by an uncle, and goes to live with a womanizer cousin.