消失的凶手,只留下黑影的线索……这天晚上,唐俊在公司加班到凌晨1点,才匆匆回到家。他住在市电线厂的单身宿舍里,该厂经营不善倒闭了,这栋宿舍楼就被该厂出租以换取职工的生活费。宿舍楼前面是一扇大门,也是电线厂的后门,常年不关,唐俊每天 Disappear murderer, leaving only the clues to the shadow ... ... That night, Tang Jun overtime in the company until 1 am, hurried home. He lives in a single dorm in a city power plant, and the plant goes down in bad business. The dormitory was rented by the plant in return for the living expenses of the workers. Dormitory front is a door, but also the back door of the wire plant, perennial is not related, Tang Jun every day