Fish in Puddle (2015)

Although 15-year old Wing is bounced around in foster homes, he forms a genuine sibling relationship with 9-year old Hoi Lam and the mentally challenged Chi Yan. They are cared for by Chi Yan's grandmother who heads up this makeshift family. Occasionally full of teen angst and bordering on delinquency, Wing nevertheless showers Hoi Lam and Chi Yan with brotherly care. Cheerful Ho Lam dreams of reunion with his mother. Wing, more world-weary, ends up transferring to a youth hostel. In their brief days together, the trio formed a true family bonded by love instead of blood. The immensely likeable and talented trio of actors shines in this poignant and heartwarming tale on how children find strength in each other.