Late one night out on the Eastern Promenade Trail in Portland, Maine, the police discover an incoherent teenager sitting in a pool of blood, holding the body of his best friend and the murder weapon. The girl they both love has been missing for weeks. The kid's jealousy clearly drove him to murder. He says the missing girl is the love of his life. She also happens to be the girlfriend of the murder victim.

It's an open-and-shut case, or so most of Portland thinks.

Dr. Lisa Boyers, forensic psychologist, receives a call from an old friend, a connection to her troubled past. Attorney Rudy Swaner wants her to interview the young killer, Paul Ducharme, who is claiming he doesn't remember the events leading up to the murder.

In her jailhouse interviews, Lisa helps Paul to recover his memories. But something about Paul's disturbing love story shakes Lisa to the very core of her being. To understand Paul, she is forced to confront her own ugly violent secrets.

Media attention mounts. Reporters stream into Portland. All eyes turn to the psychologist who seems intent on exonerating the vicious teen killer. Soon Lisa finds herself the focus of an over-zealous reporter with a knack for digging up dirty secrets. But the killer who has Lisa in the crosshairs already knows them all.