The highly toxic industrial alcohol stored by liquor distillery owner Chen Yang is stolen by a villager, Zhao Decai, who mistakes it for fine liquor and plans to serve it as the birthday wine at his father's eightieth birthday celebration. Upon discovering the theft, Chen Yang immediately warns the entire village and personally visits Zhao to stop him. But too proud to admit that he stole the alcohol, Zhao even pressures his father into drinking the poison. In the end, the old man dies despite emergency treatment, and Zhao brings disaster upon himself, suffering the consequences of his own actions.