Veronica's Room (1973)

Written by Ira Levin
Directed by Ellis Rabb
Cast: Eileen Heckart, Arthur Kennedy, Regina Baff, Kipp Osborne

A middle-aged Irish couple, John and Maureen Mackey, bring a young couple, Susan and Larry, to the suburban Boston home where the Mackeys are caretakers. Susan and Larry have recently begun to date, and the Mackeys approached them at a restaurant due to Susan's resemblance to a dead woman, Veronica.