The Alfred Hitchcock Hour "The Black Curtain" (1962)

Season 1 episode 9 of the series, with Richard Basehart, Lola Albright, Harold J. Stone, Gail Kobe, George Mitchell, James Farentino, Neil Nephew, Celia Lovsky et al ( www.imdb.com/title/tt0394021/). Director Sydney Pollack. Host Alfred Hitchcock. Original air date 15 November 1962.