Is there a (mad) doctor in the house? "Yes!" shrieks Doctor X, filmed in rare two-strip Technicolor . An eminent scientist aims to solve a murder spree by re-creating the crimes in a lab filled with all the dials, gizmos, bubbling beakers and crackling electrostatic charges essential to the genre. Lionel Atwill is Doctor Xavier, pre-King Kong scream queen Fay Wray is a distressed damsel and Lee Tracy snaps newshound patter, all under the direction of renowned Michael Curtiz. Also includes the separately filmed B&W version, originally intended for small U.S. markets and International distribution, which has been unavailable for over 30 years.