Voir Sadisflix. YAYA is a story about a filmmaker who explores the complex relationship between his family and the domestic worker who spent decades away from her family in the Philippines to raise his. This documentary is a tribute to all the domestic workers in Hong Kong, who has served as the backbone of Hong Kong's economy by unleashing a substantial female workforce into the economy and taken care of so many lives with love and care. You are all heroes in the hearts of the Hong Kong people. - Justin Cheung, the director