在南京监狱有一名台湾籍服刑人员。当年,年幼的他不安于现状,误入台湾黑帮,混迹于江湖。“天网恢恢,疏而不漏。”他先后在台中、台北监狱服刑。后来他走出高墙,来到大陆。谁知,在商战中,他再次沦为“阶下囚”。面对大陆监狱这个似曾相识却又完全陌生的地方,身陷人生最低谷的他,能否重新站起来…… There is a Taiwanese prisoner in Nanjing Prison. At that time, he was disturbed by the status quo in his youth and strayed into Taiwan gangsters and disappeared from rivers and lakes. “Skynet recovery, sparse but leak. ” He has served in Taichung, Taipei prison. Later, he stepped out of the wall and came to the mainland. Who knows, in commercial war, he once again reduced to “prisoner in prison.” In the face of this familiar but completely strange place in the mainland prison, he can not stand up again in the lowest trough of his life ...