It has been a busy year in a London murder squad, and Met detectives DI Nash and DS Moretti are hoping for some down-time when a fatal knife attack occurs.
A respected figure in London’s Islamic community is the target. The kill is clean. A calling card of sorts is left at the scene, and the police develop a hunch the killer may strike again. Understanding the murderer’s motive will be crucial to catching him. But Nash and Moretti are starting on the back foot and this vigilante has more than one card up his sleeve.
An advertising executive is found murdered in her luxury London apartment. DI Nash and DS Moretti quickly exhaust the obvious leads when a near identical killing occurs.
Though joined in death, initially the only other connection between the two victims is the cat videos on their social media accounts. Following this tenuous thread, the detectives form a profile of the killer.
With Nash drawn away from the case on covert police work, Moretti does his best to bring in a suspect. But suspicions develop in the team when he discovers a direct communication between Nash herself and both victims.
If it comes to it, will Nash blow her cover to catch a killer?