After a teacher tragically dies, his friend, who happens to be a former cop, takes over his old job in hopes of catching the people responsible for his murder.

一名雇佣军受雇夺取一把能将人变成凶残杀手的武器，而在兄弟成为这一装置的受害者后，他决定展开复仇。

一名雇佣军受雇夺取一把能将人变成凶残杀手的武器，而在兄弟成为这一装置的受害者后，他决定展开复仇。