The Ex-Mrs. Bradford (1936)
A doctor is driven into an investigation of sinister goings-on at a horse race track by his mystery writer ex-wife. police, taxi driver, homicide, greed, surgeon, autopsy, deception, clue, racetrack, jockey, screwball comedy, horse track, horse racing, private detective, spider bite, female detective, reconciliation, damsel in distress, mystery writer, bookmaker, black widow, amateur sleuth, may/december, dead bodies