This feature documentary focuses on Ray Mancini's own personal account of his families history, his father's legacy and Mancini's own meteoric rise and fall. From the unsolved killing of his brother to the tragic Deuk-Koo Kim fight, which would alter Ray's life forever, "The Good Son" excavates mysteries all creating an intimate history; a saga of father's and sons, loss and redemption. Featuring Mickey Roarke, Ed O'Neil, Sugar Ray Leonard and historic interviews with Kim's own family, including his own son, Jiwan Kim.