LOCATION: London, England DATE: June 20th

Four men dressed in various costumes are gunned down in a cellar. The gun of one had been fired, the bullet turning up in the body of a man found in the trunk of a submerged car. Stewart pays a call on a crime broker to see who hired the men and how the crimes relate to a house in St. John's Woods, where a woman is being kept sedated because she thought she saw four men wearing disguises committing a robbery in the house.

LOCATION: Islington, London, England DATE: May 12th

A real estate agent, taking a man to see a warehouse, discovers a room constructed inside the warehouse. Worse, a dead body and a babbling man are locked inside the room. Stewart tries to interrogate the man, but he is killed before anything can be made of his babbling.