The unemployed secretary Käte applies a job by mistake in the piano factory of the entrepreneur Helmut Hofert. He does not really have any need for an additional secretary at the moment, but Käte is very attractive.
During a journey of the "Ceder", the Captain, von Moltmann, disappears. It looks like an accident, but it could also have been murder. Attorney Dr. Burger and superintendent Störensen discover quickly that two of the crewmen hated the Captain: Chief officer Rohlfs suspects an affair between his...
Famous 1930's tenor Jan Kiepura doubles as a singing shop-assistant who stands in for a famous but lazy singer, mixing up each others love-lives in the process.
