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.
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.
John Agar ,Lori Nelson ,John Bromfield
Alexander Golitzen
Universal Pictures , Universal International Pictures
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as Prof. Clete Ferguson
as Helen Dobson
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