sorry in advance... i'm just watching it now, actually i've known this film for a long time, and ik people's reviews about this film are good, and it turns out to be very good and very crazy. please... for those of u who want to watch this film, avoid spoilers on the platform whatever, bcz this film will only make u dizzy, i think this film will be boring, but unfortunately NO!!!, i really like the acting of Park Shin Hye and Jeon Jongseo, they are both my top south korean actresses, seeing their acting makes me crazy, to another film from Jeon Jongseo i've watched is "Ballerina" which is very good, i'm sure she is a top actress in the thriller genre, very impressive, here it's not just a thriller, but 'bout emotions that make u confused.