Cheryl Davidson was happy with husband Leo, watching her beloved son, Dean, grow into a handsome young man, dreaming of the paths his life would take, the grandchildren he would bring home. Until the day that Dean was murdered, his body dumped in an isolated scrapyard with a bullet in his head, and Cheryl's world exploded. Discovering that Dean had been mixed up in the underworld of the Glasgow crime world, and worst of all, that Leo had brought him in, means that Cheryl's sanity is hanging by a thread. Overwhelmed by grief and with no one left to trust, Cheryl plans to take deadly retribution on the family that caused her son to be killed, vowing that they should suffer her same pain.