Groovy.

Rating: 10/10 (27 May 2009)

This is the Sam Raimi that made the Evil Dead films. After holding back for the last decade, he really lets rip with the OTT camera-work and gross outs. Once the plot is established, he steams from one set piece to another with barely a pause for breath. It's amazingly suspenseful. You WILL jump. It's physically impossible not to with the volume of the shock cuts, but Raimi actually delivers on the creepy visuals to accompany the jump, which instantly elevates it above the cheap-scares of a typical modern horror flick.
Alison Lohman and Lorna Raver really kick the crap out of each other. The séance scene is AWESOME. The make-up and practical FX are fantastic. The CG is good for the most part, although there are a couple of dodgy moments. You see the ending coming a mile-off, but it's so well done and fantastic to watch that you don't care.
People, check it out. It's a ridiculously enjoyable motion picture.