Xu Song's father was injured in a work accident. Zhao Dayong, the contractor, concealed the truth, leaving a decades-long unresolved knot. Xu Song became a bank director. During a compliance review, he uncovered the truth of the old incident. Xu Song restored the facts and untied the knot. Zhao Dayong recognized his mistake, admitted fault and took responsibility. All parties resolved grievances and lived peaceful lives.
