In 1971, Thomas Tryon’s The Other became one of three best-selling novels that, in a four-year span, helped drag the genre from the ghetto of dusty, marginal bookstore shelves to the prime real estate of window displays. The other two (Ira Levin’s Rosemary’s Baby, in 1967, and William Peter Blatty’s The Exorcist, in 1971) became instant classics, along with their film versions; but while The Other spent more than six months on the New York Times best-seller list and was the ninth best-selling novel of 1971, it has faded into relative obscurity.
Its celluloid adaptation, directed by Robert Mulligan, hasn’t fared much better, but the film did sow seeds of influence that still grow to this day.
The Other, which was reworked for the screen by Tryon himself, is the…