Poltergeist: The Legacy - Season 4 - Eps 12: Unholy Congress (1)
Excavations in boston discover what loks like a tomb buried deep underground. The digging has made an opening and when the builders examine it they release Dr. Mordecai Church from his long imprisonment. He kills them and sets about starting his own 'religion', recruiting young runaways as his congregation. Having no family makes leaves Church free to kill his new disciples whenever he wishes, after all who is there to complain when no one knows where they are anyway? Reed Horton soon comes across Church and recruits him for his own vendetta against The Legacy.
About Poltergeist: The Legacy

Title: Poltergeist: The Legacy
First Air Date: 1996-04-21
Last Air Date: 1999-11-12
Status: Ended
Rating: 6.1/10 (from 33 votes)
Language: EN
Seasons: 4
Total Episodes: 88
Network: Showtime
Genres: Sci-Fi & Fantasy
Production Companies: Trilogy Entertainment Group
Synopsis
The adventures of the members of a secret society known as the Legacy and their efforts to protect humankind from occult dangers.
Cast

Derek de Lint
Derek Rayne, Ph.D.

Martin Cummins
Nick Boyle

Helen Shaver
Rachel Corrigan, MD

Robbi Chong
Alexandra Moreau

Kristin Lehman