Starring Vincent Price, Judith Evelyn, Darryl Hickman, and Patricia Cutts.
Director William Castle introduced an innovative gimmick called "Percepto!" by wiring certain theater seats with vibrating buzzers to heighten the scare factor for audiences. These buzzing seats, made from surplus airplane wing de-icers, were activated during key scenes, especially when the infamous "tingler" creature was on the loose in the theater. This thrilling addition was paired with other dramatic stunts, like hiring actors to scream and pretend to faint, enhancing the overall experience.