As soon as it became clear (early on) that it was a zombie film, the storyline was very predictable. Therefore, I didn't find the film scary at all. I was too busy laughing at all the zombie/horror movie cliches. For example, the tape recorder which always queues up to exactly the right place, regardless of whether you rewind or fast forward randomly (see "Evil Dead"). And, yes, I did watch it alone at night with the lights off. Maybe I'm just desensitized after being exposed to so many zombie films/games.