A movie about a guy that catches a ride on a ship with a caged mysterious beautiful woman. Unknowingly to him, she is caged becaused she turns into a man-eating sea monster at night and her beauty is to lure seamen to their death.

Duplicate post. Other post here...

https://www.askmehelpdesk.com/movies/old-sea-monster-movie-what-title-434011.html