Episode Description: Beware, spoilers! To read - hover over the text.
Holmes refuses to talk with his partner. Gregson calls him in the room killed a man and a woman. Again a serial killer, but for this crime is already serving a sentence Cruz, so he's innocent. It is Gregson was the case, there was no evidence, except a Cup. It turned out that the Cup and tossed his former partner. The criminal may go free. Maybe he's not a criminal, and the captain made a mistake. But it turned out that Cruz is so smart that could affect his illegitimate son, that he committed new crimes, and Cruz would remove all charges. Sherlock spins all the threads and find the main. Home Holmes confesses to Joan that Irene died. It's a start.