Mycroft's friend Carra, an Ex FBI agent from America, moves in with Sherlock Holmes and John Watson. She is there for a couple of days before being wrapped into the madness of the case of James Moriarty. Sherlock is now not just the heartless person he thought he was, he feels something when around her. He feels something never felt before, and he feels it for Carra. All characters belong to the BBC and ABC studios except for Carra