After a nationwide manhunt for notorious felon Carl Deere left two women hospitalised in a critical condition, clinical psychiatrist and criminal profiler Doctor Alexander Gregory is left heartbroken. Both are special to him: one is his new friend, Detective Chief Inspector Ava Hope, and the other is the woman he loves, Doctor Naomi Palmer. However, there’s something he doesn’t know… One of them is a killer.

Enlisted by the Metropolitan Police, Doctor Gregory must embark on a journey into the past—theirs, as well as his own. In doing so, he comes to understand that justice is seldom black and white, and even good people can commit murder…