黑道刀手阿钉（陈小春 饰）入狱八年终于刑满释放，对帮派生涯感到厌倦的阿钉一心希望顺利照顾大美小美两个妹妹考入大学。阿钉和从小玩到大的好友九辉合力经营装修公司，决意彻底退出江湖。然而两个妹妹令阿钉颇为忧心，大美结交到好脾气的混血男友，小美却在校园暴力肆虐的环境中沾染了不良习气。另一方面，在阿钉入狱的多年中，帮派后起之秀约尼放高利贷坏事做尽，大力扩张势力范围，引起社团元老宝叔（王天林 饰）不满，宝叔邀请阿钉出山，以制约约尼的力量，虽然阿钉一口回绝，但约尼方面为免除后患，频频向阿钉发难。九辉被约尼一伙殴打，阿钉两个妹妹也被其掳走，忍无可忍的阿钉决定反击……
Inspired by a true crime case, the fictional six-part series "German Crime Story: Gefesselt" follows the story of one of Germany’s most notorious serial killers, the so-called "acid barrel killer." Raik Doormann strikes fear into the Hamburg area in the early 80s and 90s, as he kidnaps, tortures and brutally kills women in his own nuclear bunker. It is not until Nela Langenbeck, a victim counselor and later homicide detective, comes across clues to his deeds. But at that time, women within the police department are regarded more as secretaries than investigators - so she initially earned headshakes for her approaches. Against all odds, she eventually gets on the trail of Doormann and his gruesome deeds.
林花开小时候父母意外身亡，无人管教的她成了叛逆的“问题少女”。在迷茫的时候，遇到热心的陈傅圭，她牢记傅圭的鼓励，用坚强的态度活出自己。十年后，有问题的人变成了陈傅圭，他变得现实，...
八岁的小男孩奥达尔（Oran Creagh 饰）迷恋上了他的二年级老师佩蒂小姐（Olga Wehrly 饰），便花掉自己所有的零花钱买了一只玩具戒指向老师求婚，老师将其当成一个有趣的礼物收下。然而一天，奥达尔发现老师的手上有了一枚新戒指，因为她即将与未婚夫结婚了。怅然若失的奥达尔心中开始酝酿一个骇人的念头，就像他所爱的所有西部牛仔电影一样，他约了佩蒂小姐的未婚夫明日放学后一决生死，后者答应了并开始嘲讽这个滑稽的男孩，直到奥达尔真的从书包里掏出一把枪……