Retired teacher Heinz Schmidt's wife is having surgery. Staging dangerous domestic incompetence, he gets himself 'invited' to join daughter Christine, who just divorced teacher Daniel against paternal advice, and her buddy 'Doro(thea)' on working holiday on the east Frisian (North Sea) island Nordeney, where third friend Marleen de Vries is renovating a B&B with interior decorator Nils. On the ferry, they meet handsome Johann Thies, who soon overcomes his aversion for Heinz having a crush on Christine. Heinz and his local friend Kalli make a formidable wise-guy nuisance of themselves all over the place. They join forces with sleazy local reporter Gisbert Meyer, who suggests Johan is a womanizer-swindler.