In a tributary of the Amazon, a monster – half-man, half-fish – is captured and placed in a reservoir in a Florida national park to be observed by scientists.
Directed by: Jack Arnold
Cast: John Agar, Lori Nelson, John Bromfield, Nestor Paiva, Grandon Rhodes, Dave Willock, Robert B. Williams, Charles Cane, Loretta Agar, Bill Baldwin, Jere Beery, Ricou Browning
Genres: Horror, Mystery, Sci-Fi
Rating: 4.3/10