Let's see... it's a movie that I believe, is worth a watch - I'll start this review like that.
Shortly (small spoilers ahead), the movie starts as Lisa (the main actress), is woken up by her younger brother over Walkie-talkie, who has an imaginary friend. A little later because of her odd behaviour that morning, her parents have a talk with her, where she reveals that the day is repeating - over and over again, and how they (her parents) never believe her. And it's a day right before her 16th birthday.. while outside, it's a fog-like substance, like in the movie 'The Mist'.
That's all I can say without spoiling the movie too much.
Other than that, the director is Vincenzo Natali famous for the movie 'Cube'. Then there's the actor David Hewlett (Stargate: Atlantis, Cube) who's in it briefly, then there's Stephen McHattie who looks familiar to me.
Abigail Breslin (the girl from Zombieland) acts well too.
This movie is a Mistery that's wrongly categorized as 'horror', and I'd say it's a pretty good mistery at that. There's a few things that aren't that good, but eh.. most movies are like that. All in all, I did enjoy watching it. 7/10.