Riley MacPherson always thought that her older sister Lisa committed suicide when she was two years old. However, after twenty years, unexpected details were revealed: having found newspapers with terrible headlines in her father’s house, Riley comes to the conclusion that Lisa may be alive, but she is... a killer? Seeking to find out the truth at all costs, Riley began an investigation. She hopes for the support of the townspeople who knew and loved Lisa. But what will the search lead to? And even if Lisa is alive, does she want her secret to be revealed?