Tom dePerto’s review published on Letterboxd:
I used to think I knew. Now I'm not so sure.
Everyone has a dark side, sure. You just gotta control it, right? Keep it buried underneath, because it's not what you are underneath, but what you do that defines you (see what I did there?). Kevin Khatchadourian does the exact opposite. He keeps the good side (if there is even such thing) of his empty, dark personality locked inside and manifests himself as, basically, Satan's spawn. Throughout the film, which is told uniquely through flashbacks, we witness his reckless behaviour, which leads to one of the most hatefully brilliant finales of modern cinema.
It's such a twisted story, told through the eyes of his ever-suffering mother, fantastically played by Tilda Swinton, that made me completely fill up with hate towards him. It's so unique, because it focuses more on his mother's love (or should I say hate?) towards him and the suffering that he brings to her by treating her badly and bullying his sister (the latter leading to one of the most hate-inducing moments I've seen on screen in the last few years). How his mother deals with the aftermath of and looks back at his horrible actions. His father is, apparently, the only person he has any sort of affection (even though fake) towards. He was put on this world for the mere purpose of causing pain and havoc, and ultimately, the film ends up being successful in what it was trying to do - make us feel with (I wrote with, not for) Tilda Swinton's character and get to us a very important message.
And while it is mainly a drama, the movie shows little horror elements, mainly the fearful atmosphere and the heavily-serious tone. The most redeeming aspect I found in the way they present the plot is that, even though the movie intersects the flashbacks with present scenes showing the aftermath of Kevin's actions, the ending still manages to come as surprising, shocking and sinister. Because I knew what was going to happen (or at least had an impression), and it completely shocked me because of how intense and creepy it was.
Subtly mashing together the drama and horror genres with excellency, We Need To Talk About Kevin achieves greatness with its portrayal of insanity and depression. This is one absolute must-see.
For those who have seen the film, why do you think Kevin behaved this evil? Was it his mother's fault? I wanna hear about your interpretations of the story in the comments section!