FBI Agent Ella Dark, 29, is given her big chance to achieve her life’s dream: to join the Behavorial Crimes Unit. Ella has a hidden obsession: she has studied serial killers from the time she could read, devastated by the murder of her own sister. With her photographic memory, she has obtained an encyclopedic knowledge of every serial killer, every victim and every case. Singled out for her brilliant mind, Ella is invited to join the big leagues.

Victims are being found murdered in the Pacific Northwest, their bodies strung up high in the branches of Redwood trees. It is presumed to be the work of a serial killer dubbed “The Artist Killer.” Ella feels so close to catching him, feels certain she has read of similar murders—but this time, her knowledge fails her.

Can she catch a killer without her talent?

Or will it return to her too late?