On the Berlin–Copenhagen express, Madame Vera Wadjevska and her friend Baron Felix de Video meet the rich banker Wagelsten from Sydney, who after many years of absence is on his way home to Norway to take over an estate.
On the estate, young Helge lives in the certain belief that the beautiful property belongs to him, but he suddenly hears that the real owner, an uncle, is on his way.
When they announce that the yacht Mayfair is for sale, it is bought by the rich wholesaler Heegaard from Oslo, who comes to the estate together with his daughter Edith.
Madame Vera, in turn, suspects Helge, whom she understands is no ordinary sailor, and tries to get him out of the way, but things do not go according to plan.
The police are now on the trail of the impostor couple, who flee at a furious speed and drive off a cliff.