1. Four ideas for psychological thriller openings are presented, focusing on themes of revenge and mental illness.
2. The first idea involves a girl with dissociative identity disorder digging in the woods and flashing back to a mysterious relationship while hints are given about her unstable mental state.
3. The second centers on a bullied girl who stalks and seeks revenge against her two main tormentors by killing one.
4. The third switches the gender roles, showing a woman enacting psychological revenge against a man who cheated on and drove her crazy.
5. The fourth depicts an unknown girl orchestrating the kidnapping and torture of a boy who publicly humiliated his ex-girlfriend, with flashbacks