A young doctor gets stuck on a ship after treating an injured first mate. Later, he rescues a woman from plane wreckage, and with the help of the cook, he hides her away from the rowdy and dangerous crew.

Marlene Dietrich
as Ethel Marley

Fritz Kortner
as Capt. Fernando Vela

Robin Irvine
as William 'T.W.' Cheyne - a young American doctor

Vladimir Sokoloff
as Grischa - the Cook

Gaston Modot
as Morain - the escaped convict

Boris de Fast
as The tattooed sailor

Feodor Chaliapin Jr.
as Nick (as F. Schaljapin)

Max Maximilian
as Tom Butley

Fritz Alberti
as The captain of the luxury liner

Robert Garrison
as The landlord