CID officers, commanded by Major Donovan, scour Atwell's apartment for evidence. Meanwhile, as his initial shock begins to wear away, Farrell becomes convinced that Brice is the actual murderer and that Pritchard is helping him cover up the crime. At the same time, he becomes aware that the most valuable pieces of evidence so far accumulated would make him the prime suspect. Farrell determines to play along with the bogus investigation until he can develop evidence linking Brice to Atwell, so that he can defend himself against being charged with both murder and espionage (as "Yuri").