Island of the Fishmen

“Killers from the deep guard the forbidden treasures on...”

Lt. Claude de Ross (Claudio Cassinelli), a doctor on a prison ship in the Caribbean, washes ashore on an island after the vessel sinks, along with a handful of convicts. A strange couple invites the survivors to stay at their house, and Barbara Bach and Joseph Cotten are among those drawn into it. Sergio Martino films the story with the prisoners plotting their escape, and the missing men leaving only a shoreline, the sea, and the empty island.