The Unknown (1964) is a TV Movie, Horror, Thriller film that follows after two women poison the blackmailer who has been tormenting them, they wind up at the house of a blind man whose eccentric guest believes he has built a working time machine. Soon, the blackmailer is back to torment them all. The Unknown is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 6.0 out of 10 from 1 votes. Fans of tv movie movies may also want to explore similar titles below.