

A test pilot is missing and a search party is sent out in the jungles of Mexico; however, while searching they uncover a monster in the jungle who became this way due to a dose of radioactivity.
Practical Effects
The cyclops eye effect: a ping pong ball painted to look sad
Acting
Lon Chaney Jr. visibly planning his grocery list between takes

Director
Bert I. Gordon
Trivia, insights & behind the scenes
Bert I. Gordon reused the cyclops costume head for his 1962 film 'The Magic Sword,' proving no rubber monster ever truly dies.
This was Gloria Talbott's third 'beauty and the beast' B-movie in two years—Hollywood's go-to 'screaming at monsters' ingénue had RANGE (of screams).