After their prison ship sinks in the Caribbean, a group of prisoners and a doctor wash ashore on a seemingly deserted island. They soon discover a strange couple, who invite them to stay at their house. While the prisoners plan an escape, the doctor does some investigating, and soon finds out just what the pair are really doing, and why the prisoners keep disappearing mysteriously.
Genres:
Barbara Bach as Amanda Marvin
Claudio Cassinelli as Lt. Claude de Ross
Richard Johnson as Edmond Rackham
Beryl Cunningham as Shakira
Joseph Cotten as Prof. Ernest Marvin
Franco Javarone as Jose
Roberto Posse as Peter
Giuseppe Castellano as Skip
Franco Mazzieri as Francois
Cameron Mitchell as Decker (US version)
Mel Ferrer as Radcliffe (US version)
Eunice Bolt as Samantha (US Version)
Jim Alquist as James (US version)
Tom J. Delaney as Patterson (US version)
Bobby Rhodes as Rackham's Servant (uncredited)
Riccardo Petrazzi as Prisoner on Lifeboat(uncredited)
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