Hmmm… what should I say…. The story is unclear
Is it a vampire thriller fantasy story? No, because Night is a human who only able to lives by drinks human blood… for no reason explained, not even a fantasy rare disease was created by the writer to explain the situation.
Is it a psychopathy thriller crime story? I doubt it because even though Wine shows no remorse while torturing Tee and killing Boy, he shows sadness when Tee rejected the food. Is it because of bad inconsistent acting, or because the actor himself didn’t understand his character clearly... because it is unclear?

I think the main issue is because the writer confused about what he wanted to write. If it is a vampire fantasy, it has to make Night as a vampire instead.
If he wanted to make a crime thriller, he has to give more focus on the torture and killing process, Night can be an imaginative/unreal character created by Wine’s mind.
Why does Wine chasing Tee even though he already has Boy? What makes Wine so obsess to Tee? Who is Night? Where does he come from? What kind of disease he’s suffering? Where did he get that disease and since when? What makes Wine loves Night so much until he is willing to kill the man that he loves and his boyfriend? Is Night gonna be dead? The ending makes me feels like Night is an unreal character? What the meaning of bloody guitar left alone in jail?
Everything is just misty.

I am not having too much hope that this movie will have at least close level with Criminal Minds. I just hope it makes sense.