Gravel at Sunset

Zhang Haibo gave up his teaching job because of a relationship with a student and joined a machinery and electrical equipment trading company. There, he rose from salesman to deputy general manager. In the process, he witnessed the filth and corruption behind the flow of goods, and decided to leave the company and return to teaching. But by then, he was suspected of embezzling the company's revenue and faced the threat of prosecution. To prove his innocence, he began searching for evidence.