When a Stranger Calls

1h 37m · 1979 · Directed by Fred Walton · 3.1 / 5 on Letterboxd

When a Stranger Calls (1979) runs 1h 37m, directed by Fred Walton. It is one of 3,647 films in the 100 Minute Movies catalog — every one rated 3.0 or higher by Letterboxd members and short enough to finish in an evening.

A student babysitter has her evening disturbed when the phone rings. So begins a series of increasingly terrifying and threatening calls that lead to a shocking revelation.

Genres: Horror, Thriller

Where to watch: Prime Video (US, checked 9 July 2026)