Movie makes no sense whatsoever. The plot changes from a family focused drama with teen issues, to socio-economic thriller, to semi-horror, and misses all the points. A complete mess. Spoilers ahead.
The bully story at the beginning is useless waste of time, you built no empathy with the daughter because she then snaps, cuts open the locust housing and a wild, blood-thirsty swarm of locusts escape into the air. Does this have any impact on anything? Guess what, it doesn't. They go on a picnic on the beach and the mom buys a motorcycle for the daughter 4 minutes into the movie after a key event (such as a giant swarm of killer insects escape). There's the fact that she witnesses a dead goat, which would possibly trigger further killings on nearby farms but all they do is kill a goat.
The ending is even worse. Locusts become selective with who they kill and ignore the mom being in the open next to the swarm as they chase off the daughter and Karim, for dramatic impact of course. Don't waste your time.