Realistic and gripping psychological thriller; fast paced, tense and tightly plotted. When everyone is hiding something, who can you trust?

Realistic and gripping psychological thriller; fast paced, tense and tightly plotted. When everyone is hiding something, who can you trust?
Belfast CID Superintendent James ‘Marsh’ Mallow is about to bring down politician and racketeer Pink Harrison. It may all end in a riot.