While diving, Matt Farrell (Ashley) is kidnapped by Neva Gordon (Pat Woodell) and Steinman (Jan Merlin) and taken to an island where Neva's father Dr. Gordon (Charles Macaulay) is experimenting, trying to make a "super race" by combining humans and animals. Dr. Gordon wants Farrell to be one of his upcoming experiments, but Neva begins to doubt her fathers' work following a botched experiment on another test subject and falling in love with Farrell. She decides to help Farrell and the animal people escape. Steinman and his men hunt them down.
        The Twilight People is a 1972 Filipino-American horror film, directed by Filipino filmmaker Eddie Romero. It was produced by Romero and John Ashley, and written by Romero and Jerome Small. It stars Ashley and features, in an early film appearance, Pam Grier in a supporting role.