A society woman (Margaret Lockwood) is accused of murdering her businessman husband (Orson Welles). Called to piece the clues together is Inspector Trent (Michael Wilding), on the verge of retiring from detection. He learns that the dead man was a louse, providing the wife with plenty of motive. But the truth comes out: The so-called murder was actually a carefully choreographed suicide. End of story? Not quite. Trent's Last Case was previously filmed as a part-talkie in 1929, with comedian Raymond Griffith in the title role. ~ Hal Erickson, All Movie Guide