Written by Richard Matheson, from a story by August Derleth and Mark Schorer
An old man fears that upon his death, his soul will be possessed by an evil sorcerer and the sorcerer's cohorts.
Horror fans should be very familiar Richard Matheson, the writer of this episode. Matheson is the much-lauded author of the novels that inspired the classic genre flicks The Incredible Shrinking Man, The Omega Man, and The Legend of Hell House. In addition to writing for Thriller, he has contributed to genre TV shows such as The Twilight Zone, Star Trek, Kolchak: The Night Stalker, and Amazing Stories.