Chen Jing, the top truth arbiter, lives in a city where everything is quantified by the "real system". A perfect frame-up caused her to fall from the peak of her credibility and she was accused of being a leaker. The system has a 72-hour countdown and her score is about to return to zero. At that time, her identity, memory and even existence will be erased. She must uncover the liar hiding behind the absolute truth before she is swallowed up by "truth".