Assassino dos Quadrinhos (2013)

Its a the same creepy , exiting unexpected story line.. the casting perfectly and scenes are neatly done.. you'll love it indeed!!!try me.!

both has manga/webtoon which is drawn and kinda comes to life
in the movie it comes true for real in the real life
in W kdrama it first builts the other world where characters appear are developed and slowly from there it begins to actually affect reality

Both revolve around a detective trying to catch a murderer only to find that the murders have been drawn in extreme detail by someone who's seemingly not the murderer. In this movie the murders are shown through web toons and in gifted hands the murders are shown through graffiti. Both are pretty intense and pretty interesting.

somewhat similar but different. however, both deal with manga/manhwa drawers, there's twists and turns, suspense and murder. if you liked one, you'll more than likely like the other as well.

both have murder, gruesome bloody death, thriller and horror. (although killer toon is more a 'supernatural' kind of horror, while watching is a slasher kind of horror. they both have good addictive plot which will keep you on the edge.

If you need a head start on what to expect on the release of The Grotesque Mansion look no further. Just from reading the synopsis alone both portray webtoon writers having a strange connection to the killer. Both also use animation as a special method in revealing the truths behind why the crimes took place.