For as long as residents can remember, the housing projects of Chicago's Cabrini-Green neighborhood were terrorized by a word-of-mouth ghost story about a supernatural killer with a hook for a hand, easily summoned by those daring to repeat his name five times into a mirror. In present day, a decade after the last of the Cabrini towers were torn down, visual artist Anthony McCoy (Yahya Abdul-Mateen II; HBO's Watchmen, Us) and his partner, gallery...