Sorrow Bound — David Mark

The sweltering summer heat is pushing Detective Sergeant Aector McAvoy and the Serious and Organized Crime Unit to the brink as a sadistic new boss takes over the local drug trade and violent crime escalates. Then, McAvoy and DS Trish Pharaoh are distracted by something deadlier: a serial murderer with a taste for the macabre. McAvoy comes to suspect these are actually copycat murders, committed as revenge for mishandled police investigations conducted years ago. But when one of McAvoy's fellow police officers is blackmailed, McAvoy's life -- and that of his wife, Roisin, and the couple's two young children -- is suddenly in jeopardy. As the vicious monsters lurking in the shadows creep closer and closer to home, McAvoy must figure out a way to protect his family at all costs.