There is something Marple-esque about Edna May Oliver's portrayal of the meticulous, no-nonsense, schoolteacher "Miss Withers". There's also something hideous about some of the fish in the aquarium where the police discover the corpse of the pretty universally disliked "Parker". It turns out that his wife (Mae Clarke) has a boyfriend (Donald Cook), and that both were present at the time of death. Looks like a bit of a no-brainer for "Insp. Piper" (James Gleason) but his chance meeting with the razor-sharp mind of the prim and proper "Withers" soon makes him think again. Despite his initially…