Joanna Watson is a normal bartender at a London pub. One night, she hears from one of the regulars that her best friend Elizabeth was murdered at another local pub, and she is later questioned by police about everything she knew about her best friend. A few days later, a man is sitting at the bar, questioning her yet again..only, he's not a police officer. His name? Spencer Holmes, son of the infamous Sherlock Holmes. Suddenly, Joanna's life is turned upside down as she is dragged along as the new assistant of Spencer Holmes. She is told to help him on his latest investigation, the case of Elizabeth Greene; but after the case is solved, will she be hooked?
4 parts