They Won't Believe Me (1947)

Irving Pichel's They Won't Believe Me is the flashback unfolding of Larry Ballentine's (Robert Young) witness-stand testimony in his trial for the murder of girlfriend Verna Carlson (Susan Hayward). Larry is the first to admit he's a parasitic heel, cheating on his rich wife Gretta (Rita Johnson) first with magazine writer Janice Bell (Jane Greer) and then with Verna. Though aware of Larry's affairs, Gretta cannot manage to leave him; rather, she uses her money to keep him in tow. She foils his attempt to run off with Janice by buying him a partnership in a brokerage firm. When she discovers his plan to flee with Verna, she sells her interest, leaving Larry unemployed and penniless. The lovers run off nonetheless, but Verna is killed when a truck crashes into their car. When the authorities assume the charred victim is his wife, Larry gets a sinister idea. He returns home to kill Gretta, but she is already dead, so all he has to do is hide the body. Unfortunately for him, the police come looking for the missing Verna, who they suspect was blackmailing him. They find Gretta's unrecognizable corpse, think it's Verna's, and arrest Larry. The flashback structure of this suspenseful film noir effectively creates a foreboding tension that mounts to a powerful final scene.