I had no real interest in this film until I caught this extended blurb, so I took a chance and viewed the trailer which is now online, it's quite disturbing, and it shocked me that both Camilla Belle and Elisha Cuthbert look so strong in this.

The trailer comes from Yahoo Movies[QT] through Twitch:

Cheerleader Nina Deer's seemingly idyllic life of is thrown into turmoil when Dot, a deaf teenager, is adopted into her suburban family. After first being ostracized as a "freak," Dot soon becomes extremely popular as those around her find her to be someone they can conveniently and safely confess their darkest secrets to. Struggling with a very disturbing secret of her own, Nina eventually strikes an unlikely bond with Dot herself.

Is the extended blurb. Now tell me, doesn't that sound interesting? Even if you don't think so, check out the trailer, there are some pretty disturbing moments in it and a great feeling of quiet menace.