The marriage of the celebrated operetta diva Vilma and the chamber singer Peter has come to an end. Peter, however, is intent on winning back his now ex-wife. So he’s come up with the idea of a guest performance in Venice, where the two will both appear. Vilma, however, has already found a new man – Niki. He’s a salesman and she wants to marry him. With the help of Annemarie, a friend, who has won a trip to Venice, Peter succeeds in diverting Niki, for he falls in love with Annemarie. Now the way is free for Peter to win back the ex-wife, who couldn’t care if he lived in a hole six feet underground.