Inside a dark isolation tank, a perilous journey into the most primitive layers of the mind begins. In this sci-fi and horror experiment that pushes the boundaries of consciousness, the past is not merely a collection of memories. Ken Russell explores the physical limits of human nature by focusing on psychedelic hallucinations from his Harvard days and his genetic roots. On the threshold of physical and spiritual transformation, the perception of reality slowly dissolves. The coldness of the laboratory setting gives way to the darkness of primal rituals and the subconscious. The line between sanity and madness grows a little fainter with each new experiment.

Nominated for 2 Oscars. 1 win & 7 nominations total