这部影片改编，张芮涵作家所著的《大旗袍师》，讲述的是裁缝世家为了坚守旗袍的传承，以爱国情怀穿针引线，为了抗战的胜利，舍身取义，敢于坚守的热血故事

1932年，日军陆续占领了上海，更多的区域曾经十分繁华的上海沦为一座被黑暗笼罩的孤城，在抗日的推动之下各界的爱国人士不顾危险，努力反击连杀多名的日军军官，引起了日本高层的警惕。 故事以新世界精心策划的告别宴为由，众多爱国人士巧庄进入了生日宴，成为服务团队，其中负责传递情报的就是混入制衣部门为大佐夫人所缝制的和服的一群旗袍师傅，而这群旗袍师傅恪守旗袍的风骨，宁愿死也不为日本人制作旗袍，拥有着一身正气师门。门徒三人身份成迷，正反难辨，在一次围剿着日本的暗杀行动之中，谁才是卧底，而谁是最终的胜者，一场集中局正式开始。

This film is adapted from "The Great Cheongsam Master" written by Zhang Ruihan. , for the victory of the Anti-Japanese War, a passionate story of sacrificing one's life for righteousness and daring to persevere

In 1932, the Japanese army successively occupied Shanghai, and more areas of the once prosperous Shanghai were reduced to an isolated city shrouded in darkness. Under the impetus of the Anti-Japanese War, patriots from all walks of life disregarded the danger and tried hard to counterattack the killing of many Japanese officers, which aroused the vigilance of the Japanese high-level. The story is based on the farewell banquet carefully planned by New World. Many patriots Qiaozhuang entered the birthday banquet and became a service team. Among them, a group of cheongsam masters who mixed in with the kimono sewed by Mrs. These cheongsam masters abide by the character of cheongsam and would rather die than make cheongsams for the Japanese. They have a whole body of upright teachers. The identities of the three apprentices are confusing, and it is difficult to distinguish between pros and cons. In an assassination operation encircling Japan, who is the undercover agent and who is the final winner, a centralized game officially begins.