Leentje van de zee (1928)

A young girl survives a shipwreck and is found and subsequently raised by the fisherman Harry Smits. He gives her the name Leentje from the Sea. When she grows up, she becomes engaged to Jaak Rens. Harmstrong, a tourist, tries to seduce her with stories about city life. The next day, he is found with a knife in his back. Jaak Rens is taken in as a suspect, but a mentally challenged beachcomber, who has been protecting Leentje since her childhood, turns out to be the murderer. During the trial, the judge recognizes the birthmark he had placed on Leentje’s arm at birth and realizes that she is his daughter. After the trial Jaak and Leentje marry.