Shortly after retiring, Japanese businessman Tomoaki Sunada learned that he had late-stage abdominal cancer and started to plan for his death. This depressing documentary by his daughter, Mami, tracks the brutal progression of the disease and his touching journey from stoicism to overt emotionality; he’s warmer and funnier as the film goes on. But she mucks up the story with a bad conceit: in voice-over she reads notes and reminiscences on her father’s behalf, including a bucket list that ranges from the practical (“Inspect funeral venues”) to the whimsical (“Vote for opposition party”). I couldn’t be sure where his voice ended and her imagination began—one segment includes a posthumous conversation between them—which had the effect of pulling many of the film’s punches. In Japanese with subtitles.