Anna Paquin and Stephen Moyer of HBO's hit show "True Blood" can't seem to get enough of one another.  They sink their teeth into one another, among other things, on their hit TV show.  They're also engaged to be married...in the real world.  And now they're set to star in "Open House," a horror thriller about a house hunter who overstays his welcome.  More details on the project after the jump.

The film's being written and directed by Paquin's brother Andrew.  According to Dread Central, couple will play a duo in a strained marriage (knock on wood for the stars themselves) who hold an open house in their sprawling home.  Little do they realize, one of their guests hides out in their house long after open house becomes closed for some sadistic, of-yet-unspecified purpose.

I won't lie, I'm a big fan of "True Blood," and of Paquin and Moyer by extension, I just hope their private lives and their public TV personas don't overshadow their performances in "Open House."  Their other roles are so strong, it might be hard to see them as anything but a telepath and a vampire, especially when they're together again.  But then again, the two are a pair of quality actors, so there isn't cause for too much concern.

The project's in post-production and is slated for a 2010 release.