Directed by Robert Mulligan and based on the book by Tom Tryon, The Other was released 40 years ago in May of 1972.
I saw this movie at a very young age, and although the film oozed with creepiness, I still found it fascinating. I probably related to the young actors (Chris and Martin Udvarnoky) on some level. Sadly, Chris Udvarnoky (Niles Perry in the film) died in October, 2010 at the age of 49. Enjoy the trailer and seek out The Other.