When a brutal crime leaves a witness scared silent, a London psychologist must unravel the mystery of his disturbing artwork in this crime thriller.
When art student Aiden Blake witnesses a gruesome attack on a London towpath, the police need him to identify the assailant without delay. But Aiden is refusing to leave his canal boat—and the shock of what he saw has rendered him mute.
Desperate to gain vital information before Aiden's memories fade, The Metropolitan Police call in trauma expert Dr. Samantha Willerby. Though Sam gets Aiden to communicate through his art, the images he produces are not what anyone expects. And before Sam can make sense of them, the killer strikes again. With the clock ticking, Sam races to track down a brilliant psychopath who seems to know her every move . . .