Ata (2014)

Tianyu is a blind child who dreams of a life very different from the one planned for him by his mother. Strange as it may seem, she wants to turn him into a table tennis champion. When the boy disappears one day, his mother sets out in search of him, and she soon understands that she needs to hear and feel what her son sees in order to find him. Thus, she too must enter a world of darkness.