In a future city where time is currency, the rich are sitting on eternal life while the poor are counting down their lives. Detective "Zero" who has the ability to sense "reverberations of time" is forced to investigate a bizarre murder case - an immortal's time was erased out of thin air. As the investigation deepens, he becomes involved in a huge conspiracy aimed at subverting the laws of the world. He must uncover the truth that is colder than death before his time runs out.