Goodnight, Mrs Seeholzer! (1978)

The Hänggis are busily preparing for the wedding of their eldest daughter Jacqueline to Victor, son of Stephan Haberthür, with whom Heini Hänggi is planning a business merger. Then in walks a total stranger - Mrs. Seeholzer - who announces she saw in a vision that Jacqueline would not marry Victor. She then establishes her vision's accuracy by correctly predicting various hilarious domestic accidents... Wonderful play for little theatres.