Géza von Cziffra

1865. Katharina goes to a ball in Moscow. There she meets again Tchaikowsky, her first and only love. The young, who is now married to wealthy Michael Iwanowitsch Murakin, a man she does not love, has not forgotten Piotr Illich, the (not yet) famous composer. Both are still in love with each other but Piotr is engaged to Nastassia, a dancer, while for her part Katharina cannot leave her husband. (imdb)

Director Richard Anden and his screenwriter take a cruise on a luxury liner, avoiding all feminine attempts to get a movie contract, including the ship singer. When he unexpectedly discovers that a beautiful passenger is involved in a murder mystery and chased by the police he'll try to save her from jail. Yet everyone has a secret in this Austrian musical comedy.

Sgt. Harry Cross, a gifted but brash detective, must solve a tricky murder case.