The film is adapted from the original novel by He Linman. In the scorching summer, Toshisaku Iwakai (played by Toshimu Ikuda), who works in the city's water supply department, visits families that are in arrears with water bills day after day and shuts down the water supply. Water supply restrictions began to be implemented in the county, and Yanqi met two young sisters who stayed at home alone. The evaporated father, the mother who has not returned, should we stop the last lifeline of this poor family-water? Although Yan Che was conflicted, he still followed the rules and carried out the task of stopping water.
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