What does matter in this movie? Isn't it the action? You can throw in a nice characterisation too and you have a nice mixture of an Martial Arts movie. What more to expect? The answer to that is up to you. The action choreography is good enough. The group effect and the actors do their best to hold the tight story together.
While it mixes a few things in the group dynamic (and a few foreseeable "twists" here and there), it does work as a straight story, if you do not expect too much from it. And the (brief)case should not bother you too much. Or the significance it holds (or doesn't). Even if isn't solved for you, this was meant to be that way. And while that seems a bit too much claim for a martial arts movie, it holds up
While it mixes a few things in the group dynamic (and a few foreseeable "twists" here and there), it does work as a straight story, if you do not expect too much from it. And the (brief)case should not bother you too much. Or the significance it holds (or doesn't). Even if isn't solved for you, this was meant to be that way. And while that seems a bit too much claim for a martial arts movie, it holds up