The initial scenes don't immediately grab your attention. We’re introduced to “Lok” (Chun-Him Lau), a conventionally attractive young man with tousled hair, who finds himself drawn to “Yan Yan” (Cecelia Choi), a well-dressed woman living above them whose father is abusive. It seems like it might be a standard romantic plot unfolding until the reveal that “Lok,” despite appearing cheerful and coaching sports for children, is recovering from schizophrenia, blurring the lines of what’s real for him. He's fundamentally an honest person, and when he feels obligated to inform his girlfriend about his condition, he experiences a setback which creates conflict between his feelings for "Yan Yan" and his connection with “Yip,” a psychiatry student attempting to complete her training by studying his case. The film gradually pulls you into the world of his delusions and uncertainty; a place where emotions fluctuate, and I must admit that Chun-Him Lau delivers a remarkably powerful and believable performance. While I’m not qualified to assess the medical accuracy of the depiction, this young actor certainly captivates, which is what keeps this nearly two-hour look into a complex mind engaging. It occasionally veers toward overly dramatic moments, and the directing style sometimes telegraphs plot points—particularly early on—that I would have preferred to uncover through the narrative itself. However, it’s far more developed than I initially anticipated, and I genuinely found it enjoyable.

Source on TMDB