A seemingly simple suicide case hides a huge secret that cannot be told. In order to uncover this secret, a group of people have gone through seven years, paid countless costs, and even gambled their lives... Jiang Yang, a prosecutor who once had a bright future and was well-off, was imprisoned for three years for taking bribes and embezzlement. He appeared in the public eye again as his curled-up body in a suitcase; the local famous lawyer Zhang Chao transported his body. The case attracted the attention of the whole city, and criminal police Yan Liang intervened to take charge of the case and confronted Zhang Chao head-on. Zhang Chao admitted the crime, but changed his confession on the spot when he accepted the court's verdict and produced evidence of his absence, and the case fell into a dead end.