Dead Mary (2007)

How many Bloody Mary movies are there? Even though this says Dead Mary, it's still the same game - go into a dark bathroom with a candle, say her name three times while staring into a mirror, and pray nothing kills you.

A group of friends gets together at a remote cabin for the weekend.  One couple, Matt and Kim, break up on the way there which makes things awkward.  All of them attended college together except for Baker's new girlfriend, Lily.  Since no one knows her and it is a reunion full of in-jokes and reminiscing, she is mostly ignored or made fun of behind her back.  Everyone jokes that she's just a baby because she's twenty two, but she doesn't look any younger than the rest of them.

The first night, some of them decide to play Dead Mary.  After nothing seems to happen, they decide to go to bed.  During the middle of the night, Matt hears noises, wanders outside, and is killed by someone he recognizes.

As the others run towards the front door after hearing his screams, they find Lily dazed and bloody.  She accuses Eve of killing Matt, and the others head into the woods to see if Matt is okay.  They find him dead, but he appears to be regenerating and coming back to life.  They repeatedly kill him, but he keeps coming back.

The movie is inconsistent with too many plot holes and characters who seem to waiver about their sense of self preservation. I will give credit to the premise of not being able to kill the creature as the scene of them repeatedly trying to kill Matt creeped me out.

But the movie left me wondering as it never offered an explanation for the following:

1. So Dead Mary is hiding in the mirror waiting to start the apocalypse?
2. On their way there, the gas station is abandoned and they later realize there are no campers or boaters on the lake.  The creatures say it is happening everywhere.  So it has nothing to do with Dead Mary?  Because I'm pretty sure everyone isn't playing that game.
3. After Eve is accused of being the killer, they pair off and her partner is nonchalant about it, even though they know one of them is the killer.  Argh!  Stick together, people!
4. Where did the drops of blood in the bathroom come from?  Were they significant?
5. How does the creature know how to dismantle automobile engines?
6. Lily is locked in the closet and Amber is guarding her. Why do they close the door to the room effecting leaving Amber alone?  Wouldn't it be better to keep in visual contact to make sure nothing happens to poor Amber?
7. I know it's a long way to town, but there's a freakin' killer at the cabin, so why not walk there?
8. What happened to Ted?  It's his parents cabin, but there's no sign of him.
9. Why would Dash believe the rant of a reanimated corpse who says that his wife is cheating on him with his best friend? When a corpse comes back to life, isn't the proper response Oh my freakin' god! rather than beating up your best friend based on the corpses comments?