Ko decides to use their resemblance as a means of making amends for both his and Derek 's treatment of their wives .
He discovers she is the recipient of his wife 's heart and that her husband Derek ( also played by Lau ) has left her .
Ko decides to use their resemblance as a means of making amends for both his and Derek 's treatment of their wives .
He discovers she is the recipient of his wife 's heart and that her husband Derek ( also played by Lau ) has left her .