The Von Romburg castle has been cursed ever since an ancient ancestor signed a pact with the devil. For all eternity, the eldest daughter of each generation becomes a servant of the devil- a SUCCUBUS! Centuries later, in modern times, aging Baron Von Romburg passes away his remaining days in the shadow of the curse. Through the doors of this ghastly Gothic castle comes a group of innocent tourists, marooned by a storm. Individuals unaware of the curse of the SUCCUBUS!