The film version [???] is marked by two substantive changes: omitted was Phyllis???s [Barbara Stanwyck] compulsively murderous streak and pathological devotion to ???Death???; added was a third major character (elevated from the status of a minor character in the novella), Barton Keyes (Edward G. Robinson), the tough, shrewd insurance investigator who uncovers the details of the well-disguised mur