When an old-time British villan and his crew meet their end in a bloody shoot-out on the Costa del Sol, it’s of little concern to most. After all, gangsters get killed. It’s what happens in their line of work. Allegiances change. Men die. It’s the way of things. However, when Mary Lawson a.k.a. ‘The Accountant’, a former MI6 agent turned independent contractor to the mob, is instructed by her shady bosses to investigate, things quickly get a lot more complicated. Hardened by her years in British military intelligence and ruthlessly professional, the woman who is no stranger to death and suffering, sets out to find who is responsible. However, on the ‘Costa del Crime’ with its regular influx of millions of tourists, a history of political corruption, and a diverse and thriving criminal underworld, nothing is ever simple. The father that deserted his family. The prodigal daughter, fallen from grace. A hoard of devious, manipulating and violent characters. And an unfortunate British tourist who gets caught up in the middle of the whole bloody mess.