Wen Run is an ordinary barber who runs a modest shop in a small county town. He's good at his job but has no grand ambitions. Every day, he cuts hair and chats with the neighbors. His life is peaceful and down-to-earth, and he's perfectly content. But no one knows that the barber with a pair of scissors was once a fearsome figure in the underworld. Ten years ago, he washed his hands of the life for good, all so he could live like an ordinary person.
But fate won't let him live in peace. Ma Ye, the old boss who raised him like a son, has been murdered. Sun Demao, a petty crook hoping to seize the business for himself, presents himself as a philanthropic entrepreneur while secretly carrying out all kinds of dirty dealings. On his deathbed, Ma Ye has someone seek out Wen Run and ask him to take charge. Torn between the peaceful life he fought so hard to build and the gratitude and principles he still holds dear, Wen Run has no choice but to pick up his razor again and deal with those self-righteous scumbags.