The Man Without a Body (1957)

When a prosperous businessman learns he has a brain tumor, his quest for a cure leads him to an eccentric scientist conducting radical experiments in monkey head transplants. Desperate to save himself, he hatches a daring plan to steal Nostradamus' head from its resting place. As he ventures into the crypt, he becomes entangled in a bizarre world of science and the supernatural, blurring the lines between life, death, and destiny. With time running out, can he succeed in his audacious scheme and reclaim his future?