The genre of self-referential tongue-in-cheek slashers has worn out its welcome a long time ago, but luckily "Severance" often takes breaks from being so damn clever and brings some actual thrills. The first half hour is pretty boring and filled with lame attempts at comedy, but afterwards it actually gets pretty exciting. The tension is gradually built up, and around halfway you're just totally sucked into this movie. This is mainly due to the characters, who are all pretty likable (to the standards of the genre, at least). You actually give a damn who lives and who dies, which is very rare is a slasher. The story also takes a lot of unexpected twists and turns, it's a pretty cleverly written movie. "Severance" is by no means great cinema, but it does seem to achieve whatever it wanted to achieve. Fun watch.
Review of Severance
