The multi-millionaire John Underhower travels from New York to Bavaria, where he’s bought a castle. The reason? He wants to prove there’s ghosts in the old building. John represents himself as a poor circus performer to his unsuspecting cousin Hyronimus, who works as a tour guide at the fortress. And Hyronimus has no shame in pretending to John, that he’s the proud owner of the castle. This little game soon leads to a lot of complications.

Reporter Heinz Wöhler is sent to find dancer Cilly, who vanished on tour. He discovers her dead under suspicious circumstances linked to her exploitative manager, Sabri. As Heinz digs deeper, he’s framed and kidnapped. Undercover Interpol agent Vera intervenes, leading a daring rescue from Sabri’s ringleader’s yacht and exposing the trafficking scheme.