Going back to his flat, Dermot is once again assailed by the feeling of danger and, to his astonishment, finds a revolver hidden in a bedroom drawer. There is a knock on the door and Dermot opens it to the police. The feeling of danger makes him tell the police that he is Milson, his own manservant, and the police tell him that his "master" is wanted for the murder of Sir Alington who was shot dead earlier that night after being overheard arguing with his nephew. The police search the flat, find the revolver, and decide to leave an officer there in case West "comes back". Dermot escapes from the flat through the kitchen window while supposedly getting drinks, and quickly bumps into Jack Trent who gets him away to his own house. He locks himself in a room with Dermot, produces a gun, and then insanely confesses to the murder. Sir Alington recognised his condition and was at the dinner party to assess his true mental state. Dermot assumed that his uncle was speaking of Claire, who was actually assisting Sir Alington in his diagnosis. She now assists the police to gain entry to the house and the locked room. Jack shoots himself before they can take him.