What Became of Jack and Jill? (1972)

Two young people plot to get their hands on grannie's money, but rather than simply pushing her down the stairs they hatch an elaborate plot to convince her that radical youth have taken over England are planning to do away with "oldies" like her.

Directed by: Bill Bain

Starring: Vanessa Howard, Mona Washbourne, Paul Nicholas, George Benson, Peter Copley, George A. Cooper

Links: IMDb, Movie posters, Movie stills