An unpredictable killer is loose on the streets of Glasgow experimenting with death Beginning with brute force the murderer moves on to poison & drowning greedy for new & better ways to kill Faced with a string of unconnected victims DCI Lorimer turns to psychologist & friend Solomon Brightman for his insights Lorimer is also assigned to review the case of a fatal house fire His suspicions are raised by shocking omissions in the original investigation Some uncomfortable questions have been buried but Lorimer is the man to ask them As the serial killer gets closer to Lorimer's family can the DCI unmask the volatile murderer before the next victim is found too close to home?