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In the basement of a university medical school, Dr. Jessup floats naked in total darkness. The most terrifying experiment in the history of science is out of control... and the subject is himself.

A research scientist explores the boundaries and frontiers of human consciousness. Using sensory deprivation and hallucinogenic mixtures from Native American shamans, he explores these altered states of cognizance and finds that memory, time, and reality itself are states of mind.
1980-12-25
103 min
⭐ 6.7 (761 votes)
Horror, Science Fiction, Thriller
English, Spanish
United States of America
Warner Bros. Pictures
2026-05-13
⭐ 7.918

2021-10-16
⭐ 7.8

2026-04-22
⭐ 8.629

2026-05-06
⭐ 8.018

2026-06-03
⭐ 6.8

2026-06-04
⭐ 5.188

2026-05-14
⭐ 7.2

2026-06-10
⭐ 6.882

2026-04-01
⭐ 8.177

2026-05-20
⭐ 6.793