Steamy Italian film from the 1980s?

Has anyone seen this Italian movie-- a young woman is engaged to a mobster. She meets a younger hotter guy and begins an affair with him. There's a scene where the mobster's grandmother comes to her apartment because she suspects something. She throws a shoe under the bed to see if the guy is hiding there. He is, but she doesn't catch him because he;s hanging onto the bedsprings and holding himself off the floor.... Anyone know the title?