The stuff about the virus and how it spread seemed like a bit of a plot hole and didn't make sense.
Although you can tell it didn't have a big budget they made a great movie with what they had. I was happily surprised while watching this and seeing unexpected turns. The suspense is very good and although some scenes are cliche the overall film is very good. You can pick apart every film to find its flaws and if youre going to do that then don't watch this movie but if you want something good to watch and not look for the finer details this movie is very good in my opinion.