Dans les Pays-Bas des années 20, un jeune orphelin espiègle part à l'aventure et à la recherche de son père biologique avec un chien errant pour seul compagnon.
Ernst, a man in his thirties has lost his memory after an accident. His parents see this situation as another chance to raise Ernst into a perfect son, and enlist the help of a psychiatrist, a priest and an ideal daughter-in-law to be.