I went into this movie thinking that I would know how it'll end but the characters and story kept on surprising me! The storyline was written well and the scenes were carried out very nicely by the main cast members. The action scenes were amazing to watch and there was some really great thriller heart-racing moments. There were no jump scares, which is good because I don't like them, but that did not make the movie any less scary or intense to watch. There were also no dumb characters, which was surprising because some thriller movies usually do. I am amazed again by Wi Ha Joon's acting and I am excited to see him in more works as the male lead. Wi Ha Joon has great chemistry with Jin Ki Joo so I would love to see them as romantic partners in a drama someday. Anyways, this movie was a great watch and not your typical thriller movie. It is a great choice for people who are afraid of thriller movies because this is as exciting as a thriller without too much scare.