The Witching Hour.

Jack Brookfield, a gambler with clairvoyant and hypnotic powers, is able to win at cards through his unique gift. But when he inadvertently hypnotizes young Clay Thorne, Thorne kills an enemy of Brookfield's while under a trance. No one believes Brookfield's protestations that Thorne is innocent of any murderous intent, so Brookfield teams up with retired lawyer Martin Prentice in hopes of saving the young man from the gallows.