By the time i had gotten far enough into the movie to "give it a go" i was far too invested in it to give up (or maybe just too lazy to spend time looking for something else to watch). As has been said, the movie mainly focuses on one guy's emotional downwards spiral and how it is affecting his two friends. The ending? well that was just a cop out. There was no real finale as such. It was like buying a huge firework that has this long fuse that, when the fuse reaches the firework and you are expecting this huge display of sound and light and all you get is "pufft". Oh, and, although it is titled "The Possession of David O'Reilly" i didn't actually see any scene where David O'Reilly was ever actually possessed at all. It was more about a poor guy going crazy and trying to keep something, that may or may not have been a figment of his imagination, out of his friends house. Now, the thing is, it could have been really quite good, the groundwork was all sound. But, unfortunately for the viewers, it was as though the screenplay writer/s were on a deadline and didn't have time to work out a real plot for the end. There are a few jumpy scenes and parts where you are led into the start of a good story, but thats where it stops. It's no "Blair Witch" or "Paranormal Activity"...but, quite easily could have been with a little more thought and what was there was quite well done.
Really let down, mainly, by the poor ending 4/10
Really let down, mainly, by the poor ending 4/10