After surviving a shipwreck in reefs not signalized in the maritime charts, the famous hunter Robert "Bob" Rainsford (Joel McCrea) is lodged by the Russian hunter Count Zaroff (Leslie Banks) in his castle in an isolated island. Bob meets Eve Trowbridge (Fay Wray) and her brother Martin Trowbridge (Robert Armstrong) also survivors of another wrecked vessel and hosted by Zaroff.