Police Constable Matthew Riley is called to an emergency on a blazing hot day in Langthorne. He is forced to read out these words live on police radio. Then he is shot dead.



Someone is killing the officers of the Langthorne Police one by one. And in a sadistic twist he makes each victim push their radio panic button before they die, thus broadcasting their last moments to the entire force.



And as the police face this ruthless adversary, Detective George Elms is in no fit state to help. He can barely keep his life together and is desperate to sort things out with his estranged wife and daughter. What is the connection between ruthless former officer Ed Kavski and the wave of killings? And can their boss Helen Webb do anything to stop the carnage?