The attempt of the director to make a horror movie lies flat on the ground.The ghost or horror element appears only for 2 very short instant,in fact the poster is more horrifying than the movie.
The central premise is so vague and ill-defined that it ends up making less sense as time goes on.In the movie it constantly needs to fade to black in order to jump from one character to another. For a film that supposedly takes place over the course of a night, this is not only unnecessary but serves to deflate the dramatic tension.
"Dead Mary" is a below mediocre movie. The urban legend of Bloody Mary that was brilliantly explored in "Candyman" in the 90's, now is used in a rip-off of "Evil Dead". There are many movies with "a group of friends that goes to a cabin in the woods and faces evil", like for example "Cabin Fever", which works. But "Dead Mary" is awful, with a boring beginning, a messy story where "Dead Mary" never shows up, and a ridiculous conclusion.
This movie was a disappointment on several different levels. As we first start in it's obviously going to be yet another horror movie about beastly and possibly a couple of decent young people heading out to do stupid things in the woods and on that note it played through.