Extraños en un tren

Strangers on a Train (1950) is a psychological thriller novel by Patricia Highsmith about two men whose lives become entangled after one of them proposes they "trade" murders. It was adapted as a film in 1951 by director Alfred Hitchcock and again in 1969 by Robert Sparr. It has since been adapted in whole or in part for film and television several times. The novel was adapted for radio in 2004 by Craig Warner, and adapted for the stage in 2013 (also by Warner).