Katie is 17-years-old, and she is planning on spending the summer vacation with her long estranged father in a rented cabin. When Katie arrives, her father is not there yet. Convinced that he is only going to be temporarily delayed, her mother allows Katie to stay at the cabin and wait for her father.

Katie soon makes friends with other kids camping in the park. But something isn't right. The youths that Katie befriends start to show up dead, and it looks like Katie is somehow involved.

Will Katie be able to solve a year old murder case and save herself and her friends from the same fate?