Sherlock's and Joan's new careers as consultants for Scotland Yard in London take them inside the tabloid journalism industry when a popular model is the victim of an acid attack. As Joan grows increasingly homesick for New York, Gregson is wracked with guilt over his unresolved rift with his former consultants.
Liv, Clive and Ravi investigate the suspicious death of Cornell Piercey, the head of Piercey Corp, a successful traffic app company. Melissa Schultz, Cornell's ex-girlfriend, is now running the company, makes an interesting reveal to Liv and Clive. Meanwhile, Peyton is focusing on maintaining positive zombie PR in the city. Lastly, Blaine is intrigued when he meets Al Bronson of Bluster Magazine, as she is not at all what he was expecting.