Dark Shadows - Season 3 - Eps 43: DS-235
Maggie is found unconscious and the wounds on her neck have been re-opened. Dr. Woodard moves Maggie to the hospital. The nurse watches over Maggie as she sleeps, Maggie appears to get worse, the nurse examines her then goes to get the doctor. When they both return Maggie is gone and the window is wide open. The nurse tells Dr. Woodard that there was every indication that Maggie was dead.
About Dark Shadows

Title: Dark Shadows
First Air Date: 1966-06-27
Last Air Date: 1971-04-02
Status: Ended
Rating: 7.165/10 (from 82 votes)
Language: EN
Seasons: 13
Total Episodes: 1225
Network: ABC
Genres: Drama, Sci-Fi & Fantasy, Soap
Production Companies: Dan Curtis Productions
Synopsis
Dark Shadows is an American gothic soap opera that originally aired weekdays on the ABC television network, from June 27, 1966, to April 2, 1971. The show was created by Dan Curtis. The story bible, which was written by Art Wallace, does not mention any supernatural elements. It was unprecedented in daytime television when ghosts were introduced about six months after it began. The series became hugely popular when vampire Barnabas Collins appeared a year into its run. Dark Shadows also featured werewolves, zombies, man-made monsters, witches, warlocks, time travel, and a parallel universe. A small company of actors each played many roles; indeed, as actors came and went, some characters were played by more than one actor. Major writers besides Art Wallace included Malcolm Marmorstein, Sam Hall, Gordon Russell, and Violet Welles.
Cast

Jonathan Frid
Barnabas Collins / Bramwell Collins

Grayson Hall
Julia Hoffman

Joan Bennett
Elizabeth Collins Stoddard / Naomi Collins

David Selby
Quentin Collins

Kathryn Leigh Scott
Maggie Evans

Lara Parker
Angelique Bouchard Collins

Alexandra Isles
Victoria Winters

Nancy Barrett
Carolyn Stoddard

Louis Edmonds
Roger Collins / Joshua Collins

David Henesy
David Collins