When Kate's mother dies, a man turns up at the funeral claiming to be her uncle. Kate is mystified; her mother was an only child. She agrees to meet him but when she tells him more about herself, he disappears. It's best to forget him and get on with the business of grieving but when she finds her own death certificate, she realises she's not who she thought she was. Besides, there are the threatening phone calls and messages to her mother to consider...

Four hundred miles away in Glasgow, DI Alex Scrimgeour is haunted by memories of past crimes. Is he responsible for a miscarriage of justice? He's already worried when Kate contacts him with her story. If she is who she thinks she is, it could ruin his entire career. Despite their mutual antipathy, only by working together will they understand the past and finally put old ghosts to rest.