Dark Shadows (1966)

Season 3: Episode 43

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.