Three years ago, on a rainy night in early autumn, a girl accidentally fell from a cliff. The girl's sister was actually the murderer of the accident...
Purpose: This story takes the thrilling reversal of "sister killing sister" as its core, and deeply explores the complexity of emotional favoritism, psychological imbalance and sister relationships in the original family. On the surface it is a suspenseful investigation, but at its core it is a psychological confession of the "neglected". When the truth is revealed, the evil stems not from hatred, but from a twisted obsession with desperately wanting to be loved. Ultimately, redemption lies not in punishment but in confronting family trauma and rebuilding emotional connections.