A serial killer known for disfiguring his victims. An obsession with the line between salvation and damnation. A delusional vendetta against the Red Widow. These elements only scratch the surface of a man known as the "Žižkov Fiend" of Prague.
Forensic sleuth Vivian Xu is underestimating his sadistic impulses. Help arrives in the form of Elijah Merrick, a tall and handsome psychiatrist with secrets of his own. He may be the key to Vivian understanding and defeating her most vicious adversary yet.