Paperthin (2012)

When someone is murdered in cold blood on his doorstep, a talented yet exhausting recluse (Tommy) hires a washed-up former detective with an agonizing past (Dobbs) to help uncover a mystery that runs much deeper than either could have possibly imagined. As the unlikely duo begin to unravel a wide-spread corruption, with powerful authorities hot in pursuit, the truths of Dobbs' sordid past begin to resurface. Faced with his personal demons and imminent danger to everyone he loves, Dobbs must choose whether to risk everything -his family, his friends, and himself- for his past, his honor, and his undying duty to the shield.