In 1904 during the Russo-Japanese War, a Japanese naval officer gets his wife to seduce a British attaché in order to gain secrets from him. Things begin to go wrong when she instead falls in love with him. Adapted from a novel by Claude Farrère.

Charles Boyer
as Marquis Yorisaka

Merle Oberon
as Marquise Yorisaka

John Loder
as Fergan

Betty Stockfeld
as Betty Hockley

Valéry Inkijinoff
as Hirata

Miles Mander
as Feize

Henri Fabert
as The Admiral