Thankfully there is only a hint of violent behavior and not explicit brutality in this movie making it watchable. The main character in this movie is also called Cooper.
Cooper takes his daughter to a concert by Lady Raven, a pop singer. He is a doting father and indulges his daughter as any American Dad would, I assume. Gradually and confusingly, we discover that Cooper starts doing ‘weird’ stuff like pushing a girl down the stairs for no apparent reason! We also see him observing a captive young man through a camera app on his phone. Which makes him seem even weirder, you see! Did Cooper deliberately lock the man before leaving his house or is that young man an intruder on Cooper's property who gets accidentally trapped?
We see a large team of police officials arrive suddenly and surround the stadium. They are looking for a serial killer named ‘the butcher’ who is also inside the stadium! Our hero, Cooper seems weird but not a butcher yet, we still can't connect the dots.
Then we notice him raising the temperature of the fryer while passing a fast food joint causing it to explode and burn a server. But before the explosion, we are shown bottles filled with alcohol inside the overheated oil pan. Cooper didn't place those bottles in there .(And because the director only shows the close up of a hand turning the fryer knob higher while Cooper is close by we have to assume that Cooper did it.) Then Cooper saves the life of a fainting girl by carrying her to a nurse's station after he notices a group of concert workers place her against a railing near Cooper while he is watching his girl dance with lady Raven from the side of the stage.
Surprisingly, Cooper forces Lady Raven to give him and his daughter a ride (using the life of the captive man as bait) in her limousine so he can escape without being noticed by the police.After a few twists and turns, Lady Raven exposes Cooper as being the butcher and helps the man who was Cooper’s prisoner somewhere escape with the help of her online fans.
Towards the end, Cooper is shown as suffering from a motherly complex which is what the police use to capture him…So the question is, is Cooper a ‘Dr. Jekyll and Mr. Hyde ‘ type of personality or a victim of circumstances with a psychological disorder?!
Anyway, the entire concert was a trap to catch the butcher. We have seen this type of stuff in old psycho thrillers but not in this low key way where the environment ( shops, crowds etc) surrounding the main characters continues as usual with very little hint of a crime unfolding - a unique Shyamalan approach.

