Extraterrestrials, homeopathy, and the afterlife mesh in this oddball Japanese comedy written and directed by Junji Sakamoto. An elderly retired couple (Naomi Fujiyama, Ittoku Kishibe), surrounded by eccentric busybodies in a low-income Osaka apartment complex, return to their herbal medicine trade when a nerdy space alien (Takumi Saito) offers to reunite them with their deceased only son in exchange for huge batches of immune-system enhancers. The movie’s high point is an inventive sequence inside a massive UFO, portrayed as an Edenic savannah where intergalactic travelers might find restorative comfort. The sequence reflects a traditional Japanese reverence for nature, and it helps compensate for the claustrophobic early scenes in which the nosy neighbors trade gossip and innuendo about the couple. In Japanese with subtitles.