I really enjoyed this movie. As I reflected back on it I realized that it really kept my attention and interest. It evoked empathy as I was involved in trying to guess what the characters where going to do next and who would get the upper hand. Not bad for a movie that basically takes place in the living room of a house with only two characters. They really worked well together and the director pulled together their large swings in emotion with great skill.
The plot starts out with this gritty guy who puts an ad out to get a new roommate, preferable female. However, much to the his surprise and annoyance a guy comes to check the place out for a co-worker girlfriend but seems to be overly interested in the place for himself. The tension builds and moves throughout the whole film as the characters slowly reveal their story.
It reminds me of Dead Calm only because that movie also took place on a small boat with only three character to carry the whole film. Deranged pulls out more masterful acting performances.
If you decide to get it, don't read the back cover of the DVD, just watch and enjoy.