七煞是紫微斗数中14颗主星之一。七煞是一颗坚毅勇敢的星曜，象征「威勇」，化气为「将星」，主「肃杀」。具有运用帷幄的能力，拥有理智而独立、冲锋陷阵、冒险犯难的特性。本片为邵氏早期经典武侠改编作品。闻风丧胆的七煞会，再次集结各个分坛主，江湖将掀起血雨腥风......

A powerful crime syndicate known as the Chi Sha clan is a vast network of deadly criminals proficient in martial arts. Growing in number at an alarming rate, the Imperial Court orders Yang Chen-yu and his followers to wipe them out at all costs. Doing this proves difficult as no one knows the identity of the mastermind behind the Chi Sha, not even its own members. Spies infiltrate the organization in an effort to destroy them from within. But then, no one knows who the spies are and after a few ambushes and security breaches, the clan deputies begin suspecting one another of being traitors. With the Chi Sha dwindling in numbers, it's a matter of time before the mastermind must reveal himself.