Shen Qishui possesses a fatal ability: in the midst of extreme regret, he can flash back to the past and possess his past self.
She has used this ability to go back to the past three times and kill herself who "made mistakes" just to save her sister's life.
But her sister was still dead, and bruises from the past appeared out of thin air on her neck.
Until she found a ceramic doll on the bedside that should have been broken into pieces, with a note attached: "Save one, and one will die." Next time, who to kill?
And the perfect fiancé Lu Shi, who claimed to be able to "stabilize" her abilities, looked at her more and more like he was staring at a work that was about to be successful.
She finally understood that this was not a gift, but a hunt.
She is the hunter and she is the prey.
In this flashback, she no longer walked toward her sister, but turned around and looked at the dusty corner of the attic——
In the shadows, another "she" slowly raised her head, showing the same cold smile as Shen Qishui.
"Welcome back." "She" in the shadow said, "We have been waiting for you for a long time."
Intention: At the end of self-salvation, is it to completely kill the past, or to live with pain?