On the advice of his neighbours, Wu Song makes a statement in court about why he killed Ximen Qing. The family of the victim, the Wú brothers [brothers of Ximen Qing’s wife] believe Wu Song’s statement, and put the blame on Ximen Qing. The county magistrate decides to investigate the case according to the law, and the Wú brothers have to admit the evil doings of their relative.
武松遵照鄰居的建議，編造了殺西門慶的口供，苦主方面的吳氏弟兄信以爲真，只得怨恨姐夫西門慶。縣官按洗冤錄（當時的法典）進行驗奸，吳氏弟兄不得不認奸。