The Loft looks like the thriller version of 1998's Very Bad Things. Check out the slightly-NSFW trailer:
A remake of the Belgian film Loft, brought to English-speaking audiences by the original director, Erik Van Looy, The Loft stars Karl Urban and James Marsden as two of a group of five friends who share a loft as a place to discreetly bring their mistresses. When a dead woman shows up in the bed, they all suspect each other as the culprit.
Urban is involved in a lot of remakes this year, as he will appear in the upcoming film Dredd (though, technically, it's not a Judge Dredd remake). Check out this Dredd red band clip for a look.
Marsden, meanwhile, can be seen in the recent The Bachelorette red band trailer.
The Loft does not yet have a release date, though it is expected for late 2012/early 2013.