Maddie, a neighborhood reporter investigating a collection of killings focusing on comparable wanting girls is caught off guard when her youthful sister Olivia, is attacked in her own residence. Urging on the facet of warning, Maddie suggests they take a self-defense course. When Olivia begins to fall for his or her teacher, Maddie turns into skeptical when he refuses to disclose something about himself, and tries to intervene earlier than the connection turns right into a lethal obsession.