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.

This implicit guilt becomes stronger as in the coming months Bruno makes appearances demanding that Guy honor his part of the bargain.

Playwright Craig Warner acquired the stage rights to Strangers on a Train in 1995, and wrote both theatrical and radio adaptations of the story.

[2] The West End production of the play ran from November 2, 2013, to February 22, 2014, at the Gielgud Theatre and starred Jack Huston, Laurence Fox, Miranda Raison, Imogen Stubbs, Christian McKay, and MyAnna Buring.

The detective succeeds in solving the original murder plot and confronts Bruno with the details, but declines to take further action because he believes that both men will spend the rest of their lives punishing themselves with guilt and fear.

The devastated Bruno—with his security destroyed and realising that he will have no support or love from Guy—commits suicide in front of Guy by climbing onto a railway track where he is killed by an oncoming train.