Brotherhood of Blades

This is a movie set in the late Ming Dynasty. The 3 main characters are all elite guards for the palace. One of their fellow guardsmen goes bad. His former companions must now forget their bond and apprehend him. But are they being lured into a larger conspiracy against their emperor?

Brotherhood of Blades is a 2014 action history movie directed by Yang Lu, starring Chang Chen, Shih-Chieh King, Yuan Nie. It holds an IMDb rating of 6.6/10 from 4,027 votes and runs 1h 51m.