Forensic psychologist Paula Maguire, already wrestling with the hardest decision of her life, is forced to put her own problems on hold when she's asked to help find a baby taken from a local hospital. Then the brutal, ritualistic murder of a woman found lying on a remote stone circle indicates a connection to the kidnapping and Paula knows that they will have to move fast if they are to find the person responsible. Then another child is taken and a pregnant woman goes missing...