Jack Taylor is a former cop turned private investigator with little to show for his time in the Irish Guards. Few of his former colleagues have any regard for Taylor. The exception is his friend Garda Kate Noonan, though even she has to walk a fine line. Six months sober, Taylor takes on cases with the help of his young assistant, Cody, even while he worries about his elderly mother. Try as he might, the ex-cop from Galway finds that in his hometown, his past is always just a mistake away.