The first little girl was kidnapped from her parents' home. The second toddler was taken from her mother's car. The third was taken from her bedroom. When Helen and Sean Philips go out for the evening, leaving their teenage daughter to babysit their little Frankie, they have no idea that in just a few hours they will be confronted with every parent's worst nightmare. Detective Inspector Patrick Lennon is hopeful about bringing the three children, who have been abducted in his district in southwest London, back safe and sound. However, when a child's body is found in a nearby park, Lennon realizes that he is in a race against time and that nothing in this case is as it seems.