Riccardo (Jerry Calà) and Ugo (Umberto Smaila) are friends with opposite natures that haven't been met for long time. Both musicians, Ugo is teaching at the conservatory, while Rocco performs every night at a pub. When Rocco is threw out from home by his wife Vera (Marina Suma) he gatecrashes Ugo's home, causing a cheerful confusion in Ugo's and his sons lifes.