The Dark Recesses of the Female Mind. Another Man's Poison is directed by Irving Rapper and adapted to screenplay by Val Guest from the play "Deadlock" written by Leslie Sands. It stars Bette Davis, Gary Merrill, Emlyn Williams, Anthony Steel and Barbara Murray. Music is by John Greenwood and Paul Sawtell and cinematography by Robert Krasker. A whole bunch of fun if expectation levels are correctly set. Another Man's Poison is essentially a one set piece (confirming its stage origins), with primary focus on just five people and a horse. It's a tale of murder, deception and carnal desire...