Rat Man

A beautiful model, Marlis, is killed on a Caribbean island, by what appears to be a ferocious wild animal. Her sister Terry arrives and, with the help of Fred, a writer, discovers that the dead woman was not in fact Marlis. They learn that the natives live in fear of a terrible rat man but put it down to local superstition, until the real Marlis is killed by a being with the face of a rat....