Pavel Sunic's sister Ana had to do something unthinkable to secure his early release from a hellish Bosnian prison. When she dies in his arms, he vows to avenge her death. His journey takes him to Dublin. John Quigley of QuiK Investigations is miserable, with his partner Sarah Kenny still missing. But he is moved into action when Rose Butler approaches him to look into the killing of her daughter, Alison Cooper, a nurse. As he investigates, John soon finds certain aspects of Cooper's life highly unusual. Why did this hard working mother and wife lie the night she was killed? Why does she have a second and private credit card with a vast credit limit? Did her husband, a man who once belonged to a dangerous gang, know of her liaisons with one Ivan Colbert? But it's a second murder investigation, into the death of one Victor Wright, that completely floors John. Why did his ex-partner Sarah never once mention an ex-husband -- or his disappearance? As John struggles to keep all his balls in the air, the arrival of Pavel Sunic to Dublin set in motion a chain of events that begins to unravel a complicated story. But without Sarah to ground him, John is soon in deeper than ever.