Down on their luck, a couple rent out their ship to a mysterious man looking for treasure he'd hidden during the war. Complications ensue when it turns out he's not the only one looking for it.
A hated country gentleman is murdered, and the inspector on the case takes the veiwer through his thoughts about the possible murderer and motives as he questions everyone concerned.
A London cabby finds a greyhound puppy in his cab, and gives it to his daughter. She raises it and trains it up at the race tracks; and in spite of crooked rival owners, the dog eventually wins the Greyhound Derby.