Heavenly Hand Episode 15

On the day of the mahjong tournament, Szeto Kau and Au Yeung Chung were locked in a fierce battle. At the same time, Au Yeung Chung sent someone to find Ka Ming and revealed that her mother, Shum Ying, had a close relationship with Szeto Kau. With only four rounds remaining, Szeto Kau played brilliantly, winning three consecutive rounds, and declared that he would play the final round against Au Yeung Chung “blind”... Cheung Tit noticed that Ka-ming was deep in thought; it turned out that Ka Ming had learned that Szeto Kau was her biological father and had asked Cheung Tit to keep it a secret... Cheung Tit called a piano tuner to come to the house to tune the piano, but the person who arrived turned out to be the prime suspect in a series of serial murders of women. (Source: Chinese = episodecalendar.com || Translation = DeepL)