Mario, a man who goes through life doing nothing and living from other people's money, is released from prison, in which he spent some years for a fraud he comitted. He meets Marisa, a single woman who owns a record company. She falls in love with him and although she knows about Mario's ways, wants to marry him. Mario, who has no intentions to get married, especially not to her, takes advantage of the situation, making strange deals for Marisa's company, invloving aspiring musicians and singers. His deceit is soon discovered and while choosing whether to end up in prison again or to marry Marisa, he opts for the marriage, but in the last moment bails out of it again. Meanwhile the car mechanic Otello (Mario Girotti/Terence Hill) falls in love with a girl who has a dubious reputation...