Yi-Shan Lo was supposed to be on that mountain. In 2017, illness kept her in Nepal's lowlands while her two closest friends, Chun and Yueh, pushed on through what became a fatal snowstorm. Chun died. Yueh survived. Lo spent the years that followed trying to build a coherent account of events she did not witness — and After the Snowmelt is the result of that reckoning. The film's first half is an act of forensic intimacy. Lo rifles through text messages, Chun's diaries, and footage from the Nepali rescue team — not to reconstruct a thriller but to reconstruct a person. The materials are fragmentary and the grief is not neat. What emerges from the archive is a portrait of Chun as someone who defied the dress codes of their Catholic girls' school, who used male pronouns, and who was then, in death, repeatedly misgendered by news reports. Lo holds this injustice without editorializing. She just shows you what happened, and lets the weight land. The structural shift into the film's second half is where Lo's directorial instinct proves itself. She physically returns to Nepal, walks the trail, finds the cave where Chun and Yueh sheltered. The film stops being about documents and becomes about landscape — about what it means to stand inside a place where someone you loved endured the unsurvivable. It is a quiet and serious move, and it works. Lo is working in a tradition of essay-documentary that treats the camera as a grief instrument — Chantal Akerman filming her mother, Wang Bing accumulating testimony, Ross McElwee turning personal misfortune into structural meditation. After the Snowmelt is less formally ambitious than those forebears but more emotionally immediate than most of them. The film does not aestheticize Chun's death. It refuses to. The opening image — Lo's own boots in the snow, a lurching walk — sets the register: unsteady, deliberate, moving forward anyway. It would be easy to read this as a simple metaphor for grief. But Lo earns the image. The whole film is that walk: digging through what exists, returning to where it happened, making the camera do what memory cannot quite manage. The result is a film that is modest in its ambitions and fully adequate to them.