The Mephisto Waltz (1971) [American]
Jacqueline's single foray into the horror/occult genre
(unless you count the Australian TV movie, "Witch Hunt").
She plays Paula Clarkson, wife of Myles Clarkson (Alan Alda),
a pianist whose body is taken over by a dying Satanist.
Produced by Quinn Martin, who is primarily a TV producer ("The
Fugitive" series and many others), and directed by Paul Wendkos,
who has also primarily worked in television.
"The Mephisto Waltz" has been released on video.