A for Effort but...
Too unbelievable. If that guy wanted to kill those other two, he would have had backup, or at the very least, more than a knife. Especially if he's going up against two of them and is willing to trick them both into going into some random empty room that you access from an alley. (has there ever been only an empty room in any building you enter? make it a hallway or something) When the guys shake hands, they shake with their right and left, respectively. When people shake, they both use the same hand. (one guy is grabbing the back of another's hand
in this)
I was almost always confused as to who was who because you essentially used the same face and just decided to give people different facial hair or outfits as a defining factor. They weren't dynamic enough.
Also, you should really focus on drawing hands. They are tough to learn, but considering your hands are such a strong focus in fighting, you need to learn to draw them better.
Also, if that guy's girlfriend was killed, what is keeping him from attacking the man who's trying to get him to join some sort of group? He should be enraged but he just seems like he's a robot who just says his lines with no emotion. I'd assume he'd attack the dude and try to force the information out of him, instead of asking where the sign up sheet is.
Now with most of the crits out of the way, there are definitely a lot of ups to this film. At the very least you have some abilities artistically and general fighting knowledge which is good. Study people and how they react in what situation, don't think like a martial artist. Think as your individual, as your characters. Sometimes it's not enough just to know how someone counters, and reacts to a punch or kick. You put quite a bit of effort into these and I'd like to see this improve.