A couple of young movie makers have secretly filmed for over a year what was going on in a hotel room, trying to realize a "live act" of common people living their life. They get in touch with old and money-tight producer Mengaroni to edit their movie, but while they contact the accidental actors for gathering authorization, he starts to manipulate their work.

A young music teacher, after her house is burned down by a raid, has to go to a refugee camp with her old and sick mother. She is forced to sell everything she owns, while she is looking for a job as a singer. One night, tired and frustrated, she meets a man who invites her out for a drink. She accepts the invitation, stunned by the bunch of banknotes in his wallet. The man takes her to his room at the hotel Luna and seduces her. Before leaving, she robs him of his money and then walks hastily home, but in the meantime her mother has died. She meets a young maestro, who wants her to sing his songs. She seems to begin a happy, though hard, life together with the young maestro who wishes to marry her. The wicked man suddenly reappears and menaces to reveal their old encounter and that she is a thief, but he is later killed. The unfortunate lady is suspected of the crime, but at the end she is cleared of it and she can happily marry her maestro