The drama is very nice BUT not have a good explaining about the beginning and ending, alot of mystery not solve

1.why items from fire victims become supernatural items?
2.What the connection about the supernatural item and dream world?
3.From where the supernatural?
4.Did these items exist before the fire?
5.what is dream world actually?why the item become supernatural items because of the fire that happened there?
6. What about the dream world symbols in the items?,it reasonable if the item is marchandise of dream world,but how about the polaroid and the lighter?
7. How they know how to use the items?
8. Who jo se hwang actually? Why his father call him "monster"?Even though they are both same a disgusting monsters
9. ‎why se hwang how about the items?
10. How to get them out of the album if the photo isn't ripped?
11. ‎what happen with the bom in the train station???!
12. ‎how kang joon out and back to the real world?
13. ‎who is the women with the key necklace?
14. ‎is jo se hwang really dead?

The case still reasonable until they said the dead of kang joon brother is connected with jo se hwang! It became very not make a sense because everything was related to Se hwang and kang joon, even they never meet before

and in the end jo se hwang did not receive the punishment by the law he deserved for his actions

The fantasy genre film originally is unreasonable,so if they want to make the genre of fantasy film they should be able to make all these things become connected instead of leaving questions to the watcher

It is unfortunate even though I felt that the film was very good at first