The Dark Recesses of the Female Mind. Irving Rapper’s Another Man's Poison is based on Leslie Sands' play "Deadlock," with a screenplay adaptation by Val Guest. The film features Bette Davis, Gary Merrill, Emlyn Williams, Anthony Steel and Barbara Murray, alongside music from John Greenwood and Paul Sawtell, and cinematography by Robert Krasker. It’s an enjoyable experience if you go in knowing what to expect. …