In the winter of 1985, her husband Wang Fusheng died unexpectedly, leaving 35-year-old rural woman Lin Xiulan to struggle along raising three children alone. While sorting through his belongings, she accidentally discovered a mysterious ledger that unexpectedly recorded the names of villagers and their dates of accidents. As a second person died bizarrely, her son's name also appeared in the ledger. To protect her family, Xiulan learned to make tofu and worked hard to support the household while secretly investigating the truth behind her husband's death. A mysterious grey-clothed man, tampered mountain goods accounts, and an abandoned old granary: a conspiracy hidden behind the peaceful village gradually surfaced.