Dr. Dylan Reinhart wrote the book on criminal behavior. Literally--he's a renowned, bestselling Ivy League expert on the subject. When a copy of his book turns up at a gruesome murder scene--along with a threatening message from the killer--it looks like someone has been taking notes. Elizabeth Needham is the headstrong and brilliant NYPD Detective in charge of the case who recruits Dylan to help investigate another souvenir left at the scene--a playing...

"Imagine everyone's surprise when Carter von Oehson, a sophomore in Dr. Dylan Reinhart's Abnormal Psychology class, posts on Instagram that he plans to kill himself. 24 hours later and still no one has seen him. Release the hounds. A massive search ensues. But when Carter's sailboat rolls in with the tide without him or anyone else on it, the worst seems to be confirmed. He really did it... Or did he? The one person convinced he's still alive is...