Lin Zhiyao, who develops a home security system, receives a warning call from her future self on her birthday night, learning that once she signs the agreement, she will bear the stigma of several human lives. Her fiancé and close friend secretly set up a scheme, forging evidence in an attempt to seize the project. She calmly preserves the evidence, confronts public opinion framing, guards the safety baseline of the product, and relies on her own choices rather than prophecies to reverse the tragic future.