"The dirty cop will inevitably reveal himself. He'll always give off a sign, an indication." Tough words to hear for detective Jack Devlin, whose father apparently committed suicide after being tied to the biggest scandal in Boston's history. Now, more than twenty years later, a letter from his dad surfaces, pushing Devlin to reopen old wounds. Through conflicting emotions of anger and devotion, he searches for truth, hoping to uncover the secrets behind his father's infamous fall from grace and tragic death. But what he finds could bring the Boston police force to its knees--and there are some who would kill to keep history silent.