The team are racing against the clock as they try to establish the identity of the care-home pedophilic murderer. Meanwhile, he is being hunted down by two of his victims: Tanner, the dead boy's twin brother, and another former resident who was abused. The team need to reach the pedophile first, to prevent another death.
The discovery of a mummified body opens an investigation into a supposedly fictional film from the 1960s. It transpires that the gangster responsible for the bodies behind the walls in the Notting Hill house is still active today.