'We Don't Need a Grave' attempts to show how the people who choose Shizenso rather than the typical family grave try to accept one's death. Shizenso is a natural mortuary practice that has no religious affiliation. It involves scattering cremation ashes of the deceased in the ocean and mountains. During the 1990s in Japan, Shizenso emerged as a citizen movement due to the changes in social attitudes towards family and religion. The film recounts stories of members from Grave-Free-Promotion Society (GFPS) who practise Shizenso. It explores not only this unique practice of saying goodbye to one's beloved ones but also the mixed emotions of those who practise it.