Hardware store owner Zhou Jiancheng favors his "female buddy" Sun Xiaomei and her son, tricking his wife Lin Qiuyue into dealing with an old freezer, while actually accompanying someone else's son to a parent-child activity. Seven-year-old daughter Duoduo mistakenly enters the freezer and gets hauled away with the truck. Lin Qiuyue desperately begs for help, but he consistently refuses to believe and lets her die without saving her. When the truth is uncovered, the son Zhou Jiancheng has cherished for years turns out not to be his biological child, his wife has given up and divorced him, and his woken daughter no longer recognizes him.