Corruption (Carnage; Laser Killer) (1968) [Val Nolan]: Burned/slashed to death by
the surgical laser in Peter Cushing's laboratory, after it goes out of control. (The
entire movie turns out to be Peter's dream, but the final scene indicates that it's
coming true.) (Thanks to Big O)
The Horror of Frankenstein (1970) [Alys]: Killed (off-screen) by the monster
(David Prowse), after Ralph Bates locks her in the monster's cell. Her body is
shown lying on the floor afterwards.
The Vampire Lovers (1970) [Madame Perrodot]: Bitten on the throat by Ingrid Pitt
at the head of the staircase.
Bad Girls: Coming Out (2001) [Virginia O'Kane]: Drowned in the bathtub in the
prison bathroom by Kerry Norton and Pauline Campbell. Her body is (partially)
shown again later on when Tracey Wilkinson discovers her; we only see her legs
sticking out over the edge of the tub. (Thanks to Alex)
Absolutely Fabulous: Cold Turkey (2003) [Jackie Stone]: Dies (off-screen) of a
heroin overdose in the hospital; her body is shown afterwards with Joanna Lumley,
Jennifer Saunders, and Julia Sawalha gathered around her. (Thanks to Lauri)