It look like everyone who watch this movie a little bit confused about the story.
First, don't be confused with butterfly lovers, this movie isn't based on that folk story. Fang Hui or the director use that story for his movie but actually he want to make a trap for Lin Xi and Hesen.
It look like in the past, Fang and Lin is a couple but things not going well but Fang doesn't want to let Lin go.
Fang started to blackmail Lin and force him to be forever his actor in all his movies.
Lin meet Hesen and Hesen treat him very well and want Lin to be his lover. It make Fang angry and set a trap for Lin and Hesen by make them starring in his new movie. Fang record all Lin and Hesen activity including when they are making love. When Hesen knows about this, he really angry and try to kill Fang but Lin save him and die.
This movie is telling that if you love someone, you must ready to let it go too for your lover happiness. Trying to make it forever by your side it can be worst idea if your lover can't enjoy and not comfortable with it.
In my opinion, this movie probably shoot a long time ago but release for international via gagaolala in 2020.
The idea of this movie is good but in some point lack in execution. They can be good movie.
Honestly, I cannot rate this film as same as I rate films from other countries where the censorship is not as strict as on the mainland. I give my respect for everyone in this film because they still have the courage to make film that they want to make.