Gustav Hartmann is in trouble. Because of the new taxis he doesn't get many passengers in his horse-drawn carriage. To prove what he and his horse are capable of, he starts a trip from Berlin to Paris.

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.