在这部刀剧情/动作/武侠片中,炼锋号铸刀厂大弟子定安（赵文卓饰）被师父选为继承人，后来他知晓了父亲乃惨死于马贼恶汉飞龙（熊欣欣饰）刀下，大殿供奉的断刀正是亡父的遗物。定安带断刀出走，师父女儿向灵（桑妮饰）为爱而追寻，却被马贼所掳，定安舍身相救时竟不幸右手被斩堕下山崖。 　　断手后定安自思报仇无望，本想就此退隐江湖，不料又拾得半本绝世刀谱，于是决心秘密练刀为父报仇。可又因刀谱残缺无法练成，最后定安苦思之后自创独臂断刀刀法，他能否救得了危难中的炼锋号并手刃杀父仇人飞龙？

After the master of the Sharp Manufacturer saber factory abdicates and appoints On, his least popular worker, as his successor, On, unwilling to lead his surly colleagues, embarks on a quest of revenge to kill the evil, flying, tattooed kung fu master who killed his father.

失落的电影，失控的江湖。成也萧何败也萧何。断刀“克”，旋转之飞舞。脏……。无名氏。有关炼锋号当家人的智商等重大问题。震撼人心的另类武侠。除了侠义之外。我爱这混浊的“浆糊”。随便看看武侠片。