I had an anxiety attack for 2 and a half hours. It's not one of those thrillers where you think the characters are stupid and make the wrong decisions all the time. There is a resolution but it's not a happy one. Everytime a stressful situation is resolved another one starts. People are complaining about the inclusion of racism "cliches." But this is only included to highlight the theme of total disconnect and distrust between people, and it's done in a realistic manner. The major complain is the lack of a satisfying conclusion, which I can't really deny, but it's really more about the journey to the ending instead.