Knock KnockTwo soaking wet, hot, young women show up at your doorstep ... it's every guy's fantasy, right? In director Eli Roth's "Knock Knock," though, that dream turns into a nightmare for Keanu Reeves.

The first teaser trailer for the movie is out, and it doesn't show much beyond the set-up. Colleen Camp and Sondra Locke play two giggling girls who get caught in the rain and turn to Reeves's family man for help. His wife and kids are away, and at first, it seems Reeves has lucked into a very sexy encounter. But as the ominous tone of the trailer indicates, something just isn't right about these women.

"Knock Knock" debuted at the Sundance Film Festival last week, and should hit theaters sometime in 2015.