The Tingler (1959)

A pathologist (Vincent Price) discovers that fear can manifest itself physically in the form of a parasite in human beings. Unless the parasite is rendered harmless by releasing the fear in the form of screaming, it's possible for the parasite to kill the human. Directed by schlockmeister William Castle, who produced gimmicky B horror movies that were often crude in execution. But some of them weren't bad at all and THE TINGLER is one of Castle's better efforts (some say it's his best film). The premise is original, decently written and Price's performance has a quiet authority that encourages taking the events seriously, at least until Castle's typically over the top finale which veers toward "camp". In its original theatrical showings, Castle had a number of theatre seats rigged with vibration devices that would "shock" the viewer during certain scenes. A subplot dealing with Price and his adulterous wife (Patricia Cutts, very good) is handled well and doesn't feel like an intrusion to the film's horror elements. With Judith Evelyn, Darryl Hickman, Philip Coolidge and Pamela Lincoln.