Rückkehr als Toter (1974)

Boatman Ahrens from Hamburg has a sense of justice when it comes to finding a missing girl. He goes down illegal paths when he breaks into someone else's villa. He is caught by the millionaire entrepreneur Ofterdinger and his employee. It turns out that everything is connected to the death of a Turkish citizen who came to Hamburg penniless and worked in the port without papers. Ahrens suspects that it must be a crime...