When a body is discovered in a backyard, police have little to go on. The homeowner has recently disappeared, and all that he has left behind are clues posted online. Police wonder if they will lead to the identity of the victim - or the killer.

In a sleepy spot near Silicon Valley, high school boys are being harassed online by a new girl in town. Before long, secrets unfold that tear the community apart. But one mother has heard it all before and won't stop until justice is finally served.