Through Molly's eyes we track the steps of a killer from the streets and suburbs of Boston to the wards of a hospital for the criminally insane. As Molly struggles to free a boy from psychosis and the threat of prison, the killer's thirst for blood grows and his eyes turn to Molly and her children. It's nature versus nurture at its wildest as we face the ultimate question: Is evil learned or can a child be born without a soul?