Dr Tony Hill finds his work with the police compromised when a student from his university is abducted. But that's not his only worry - Carol stops trusting him when he allows one of his own pupils to help with the investigation. Dr Tony Hill fina... (more)lly persuades the police to reopen the case of Maggie Thomas, his long-standing child killer patient, in order to try and recover the bodies for the victims' families. Carol is less than impressed to discover that Tony has enlisted the help of one of his students, the bright and extremely attractive Laura Webster. But Laura's abilities at criminal psychology become challenged when her best friend Hattie is abducted. Tony finds that the price for bending the rules with Laura to help her understand crime on the Maggie Thomas case gives her too much access to the work to find her friend. Loyalties fray as Tony finds himself in the middle of the unpredictable triangle of himself, Carol and Laura - and in so doing leaves Maggie alone and vulnerable, haunted by the ghosts of the children she murdered. Meanwhile Hattie's abductor has struck again, and while police attention focuses on that, Maggie decides that she's had enough of not being taken seriously and Carol finds herself with another victim on her hands.