I need a title for this story...?

Ok here's a little background,in the story four girls in the ninth grade are sexually abused by their teacher. They try to make a case against the teacher but because none of them have proof the case is thrown out, because of this one of the four girls becomes mentally unstable and commits suicide. At her funeral the three girls see the teacher who caused all this act like nothing is wrong, they decided that they have to get revenge. The story goes to 3 years later when the three girls have gone their separate ways, but when the teachers car(and his body) are pulled out of the lake, things start to resurface and the girls begin to get threatening letters and text messages from someone who knows what they did on the night their teacher disappeared. The book is told from the point of view of all the girls and the detectives. So what should the title be???