S. Gagliano & Son has been a barber shop fixture in South Philly for decades. Frankie and Michael Gagliano's Italian immigrant father--Luigi to his customers, Papa to his sons--presides over the store, enlisting his children as soon as they're big enough to wield a broom. On their mother's deathbed, eight-year-old Frankie swears that he and his little brother will always take care of each other, a vow he endeavors to keep through their father's violent...