When a popular teen dies, her best friend basks in the glow of the social-media attention while their rival seeks to avenge the past and uncover the truth behind the mysterious death.When a popular teen dies, her best friend basks in the glow of the social-media attention while their rival seeks to avenge the past and uncover the truth behind the mysterious death.When a popular teen dies, her best friend basks in the glow of the social-media attention while their rival seeks to avenge the past and uncover the truth behind the mysterious death.