27 year old McKenzie has had to look over her shoulder for the past 5 years all because of her ex. Brett Moriarty. Yes, you heard it...Jim Moriarty's Unknown child, until now. When Jim finds out he has a son, he decides to help him seek what he is looking for. in this case, McKenzie.
When McKenzie meets Sherlock, she thinks they could be friends by their personalities being quite similar, but that changes when she gets to know him. she was forced to work on a case with a man she can't stand and his 'friend' that doesn't even bother speaking to her...
...but after that one case, she starts to feel differently towards sherlock. could it friendship? love even? and what happens when jim and Brett step into the picture?