From the Yahoo Movie Page:

It's been nearly a year since volatile detective Ben Carson was suspended from the NYPD for fatally shooting another undercover officer, an accident that not only cost him his job, but fueled the alcoholism and anger that has alienated his wife and kids and left him crashing on his sister's couch in Queens. Desperate to pull his life together, Carson takes a job as a night watchman at the burned-out ruins of the Mayflower department store, which was destroyed by a massive fire that devoured numerous innocent lives. As Carson patrols the eerie, charred remains of the store, he begins to notice something sinister about the ornate mirrors that adorn the Mayflower walls. Reflected in the gigantic shimmering glass are horrific images that stun Carson. Beyond projecting gruesome images of the past, the mirrors appear to be manipulating reality as well. When Carson sees his own reflection being tortured, he suffers the physical effects of his fractured visions. His sympathetic but skeptical sister Angela dismisses these bizarre nightmares as a consequence of his stress and guilt over the accidental shooting, but Carson's estranged wife Amy, a no-nonsense NYPD medical examiner, is less forgiving. Her husband's increasingly erratic behavior frightens her, pushing his family farther away--and, she fears, it's putting their children in danger. As Carson investigates the mysterious disappearance of a Mayflower security guard and its possible connection to his ghastly visions, he realizes that a malevolent, otherworldly force is using reflections as a gateway to terrorize him and his family. Carson must somehow uncover the truth behind the mirrors--and convince Amy to help him battle the greatest evil he has ever faced.

My friend felt like going to see a movie on Tuesday night and this is what she wanted to see. I don't like going to see "scary" movies in the theater because...just because! LOL I don't want to scream or something in the theater and make an ass of myself. :P
Fortunately for me, this movie wasn't that scary. At the beginning, I was freaked out by the music and the scary things that pop up on screen, but then I got over it. There were still some freaky things going on, but I'm a big girl. I could deal.

So Carson is a retired cop living with his sister. He's just been hired as a nightwatchmen at this old burnt out store that used to be a hospital. One thing he notices right away are the mirrors. The building was in flames, but the mirrors were intact. And they were super clean. So he starts to notice strange things going on in the mirrors and he's not sure if it's real or if it's just him being crazy.

This movie was gory, which I don't mind. It was interesting and I'll definitely watch it again. The ending wasn't what I was expecting and it's actually kinda cool. I'm giving Mirrors a B-. But I think you can wait for the DVD to come out.