The Rage by Gene Kerrigan

Vincent Naylor, a professional thief, is fresh out of jail. His latest project, an armed robbery, is just days away. Bob Tidey, an honest, hardworking policeman, dedicated to public service, is about to commit perjury. Maura Coady, a retired nun living in a Dublin backstreet, is lost in bad memories and regrets. Then, she sees something that she can't ignore, and makes a phone call that will unleash a storm of violence.