I love bad films but this is too boring and the plot doesn't make any sense at all. It rains all night and they're stuck all night because of the flood, yet at the end it's completely dry outside. Check on IMDB there's a really good review that details all the film's inanity.
It's not funny at all, the actors are not bad enough to be entertaining, not good enough to be mesmerized either, it's not scary, not gory, all you see is some clichéed teenagers running in three corridors and a few high school rooms. I can't believe they spent a million dollar on this. Avoid at all cost!