Vermin. La plaga

The movie was well shot with good lighting and cinematography. The spider effects were all really well done. The acting was also good. But as far as the story goes... why were the middle eastern people working so hard to catch these things for what I assume is a few bucks? I'm confused as to why the venomous animal specialist tried putting a spider in a shoebox. Im confused as to why after the spider escapes from the shoebox, he puts one of its eggs in the same shoebox. Im confused as to why suddenly half way through the movie the spiders are scared of light. Im confused as to how the spiders webbed a bunch of people to the ceiling... im confused im confused im confused. But who cares about finer plot points, its enjoyable creature flick none the less.