The legendary Boris Karloff serves as host for this vintage television series, which began as an anthology of crime dramas and mysteries but later morphed into chilling tales of the supernatural and gothic horror. With episodes based on novels and short stories, the show features a roster of guests ranging from big-screen veterans such as John Carradine and Mary Astor to soon-to-be-stars such as Cloris Leachman and William Shatner.