A "bro" (gangster) escapes from his potential murderers into a hair salon. where a hair washer is practicing hair cuts.
After the local boss dies, the bro is quickly assigned as the new boss of the gang, and his task is to seek revenge for the killing of his former boss by an unknown group of Thai men.
The boss is head over heels with the hair washer, and decides she should now cut his hair, and everyone he knows, should too. As he tries to figure out who was behind the attack, he also tries to woo the hair washer turned stylist.

Negative points: the music doesn't stand out much unless for comedic effect, and the movie is a tad long.

Positive points:
Chemistry: You may not have thought it from the start, but man these two have great chemistry.

The sense of humor:
e.g. The hair washer does an awful job throughout most of the movie, which makes for a fun watch: everyone who cares about her, or who is related to the boss, will show up in the show with a god awful haircut, potentially in a hideous color Its a brilliant way to show who's on whose team.

Keeps it light: The gruesome parts are usually exaggerated for comedic effect, but I'd still not advise this movie to the faint of heart.
There were a lot of crude sexual references I thought were pretty hilarious in how unnecessary they were (intentionally written for sure). Although others mentioned this as a negative, I thought it was funny.

The dialogues between the gang members are hilarious at times. One of my favorite scenes is when (another) hair stylist tries to walk into the salon, but gangsters are in the way. They decide to make her learn everyone's names, and there's a definite reference to Monty Python in that scene, with a mandarin (?) twist.

The scene with the boss bro and the hair stylist at her place was hilarious, especially when he comes back later.

I did not notice a single actor who was awful; all of them did a great job keeping in character. I had literal tears streaming down my face.

All in all, I highly suggest watching this if you love adult humor and a decent plot.

PLEASE watch until the very last part of the credits, as it stays funny until the literal last second. They did the actress dirty haha.

Loved this movie so much!