Enter the Phoenix(2004)

Georgie Hung is handsome, stylish and charming but he hides a secret that his old-fashion father, Hung who is a Triad leader, can never forgive. He has been sent to Thailand since he was a child and never returned. After Hung's death, his right-hand Cheung intends to bring back Georgie to take over. However, Cheung finds Sam, Georgie's flat-mate, whom he mistakes for Geogie...