Leo and Nico are two private investigators from the “Nothing can stop us”, agency. Leo is handsome and has a great success more with women than with the agency’s clients. Nico on the contrary, is tumpy and a grumbler. The two men are good friends. They are asked to handle the case of Maura a woman who claims she is being followed by a stranger. The case proceeds in a very chaotic fashion and a suspect Latin-American suddenly appears. During the Job Leo meets a woman, Francesca, a rather snobbish woman belonging to a completely different social class, with whom he falls hopelessly in love. He courts her using all his charm, but in the end she falls in love with Nico. Meanwhile Maura’s case is solved. She turns out to be an international jewel thief and the Latin-American is simply her accomplice. The friendship between Nico and Leo, which seemed threatened by the two men’s love for the same woman, becomes more mellow and concrete.