Angela Lansbury & Raymond Burr in “Please Murder Me!“ (1956)

Defense lawyer Craig Carlson (Raymond Burr) buys a pistol at a pawn shop and deposits it in his office desk drawer with a file folder. He dictates a message into a tape recorder for district attorney Ray Willis (John Dehner), revealing that he expects to be murdered within an hour, and he begins to tell his story in extended flashbacks. The memories begin with Craig’s explanation to his friend Joe Leeds (Dick Foran) that he is having an affair with Leeds’ wife Myra (Angela Lansbury), who wants a divorce. Joe asks Craig to allow him time to consider the matter. Days later at his office, Joe finishes writing a letter and gives it to his business partner Lou Kazarian (Robert Griffin) to mail. Joe phones Myra telling her that he will be home soon to discuss something. There, he confronts Myra in their bedroom, where a door is closed and a gunshot is heard. Police investigate Joe’s death. Myra explains that Joe became irate and threatened her physically, forcing her to shoot him in self-defense.