Clueless

Ariel and Sierra have been best friends forever.
There was hardly any time that they were apart. Until one night, when Ariel's body is found dead behind their usual Friday night club visit, The Wave. Her autopsy shows signs of sexual abuse, rape. The investigation shows the rapist as guilty, if only they knew who he was. A year later, still no one knows who the rapist was, and thats when Sierra began receiving letters from the rapist himself, signed off as "R". Sierra uses the notes, giving clues as to what happened that night and who he is, to find where he is, until her newly found love, Kyle, finds out and tells her he thinks this mission is too dangerous.

But Sierra will not rest until she finds this "R".