The Killer Is on the Phone (1972)

A woman whose husband was murdered five years previously, is stalked by his killer, who wants to eliminate her as a potential witness. What he doesn't know is that the shock of his murder caused her to have amnesia, and she doesn't remember anything.

Directed by: Alberto De Martino

Starring: Telly Savalas, Anne Heywood, Osvaldo Ruggieri, Giorgio Piazza, Willeke van Ammelrooy, Rossella Falk

Links: IMDb, Movie posters, Movie stills