Despite the negative reviews and some understandable critisism this movie truly is worth watching.
(Plot without any spoilers):
It tells a story of 12 teens meeting up in an abandoned hospital, all with the same plan of ending their lives. Before they are able to do so they are faced with a problem. Instead of there being 12 of them, theres 13, and one of the teens is already dead. Deciding they should figure out how this happened before going on with their plan, the mystery begins.
The mystery itself is interesting and is also the main plot of the movie. Its fun to play detective and try to figure out and discover what happened.
The acting and characters were great. Each individual character was unique and had their own reason of wanting to end their life, which was extremely interesting to learn about. Theres also quite a few great actresses: (Hana Sugisaki: Bleach, Blade of the Immortal...) and actors: (Mackenyu: recent One Piece live action..)
Most of the negative reviews talk about the movie not making much sense, which if you go full Gordon Ramsay mode might be true to some extent. For some people this might be a reason to not watch this movie, but for those able to ignore small details it definitely is worth watching despite the heavy subject!