In 1870s Transylvania, scientist Dr. Callistratus is put to death by villagers who wrongly believe he's a vampire. However, his horribly disfigured henchman, Carl is on hand to orchestrate a life-saving heart transplant.
A newly married couple arrives at the home of the husband's late wife, where the gardens have been maintained by a gardener faithful to the dead woman's memory. Soon, eerie events lead the new wife to think she's losing her mind.