Detective Chen Mo of the Municipal Criminal Investigation Detachment accidentally fell into a time loop while investigating a bizarre suicide case of a rich man, and was trapped on the day when the case occurred. Every morning, he would return to the moment before the crime scene and witness the same tragedy repeat itself. In order to break the cycle and find out the truth, Chen Mo began to use repeated time to collect clues, but found that there was a more complex conspiracy hidden behind the case. He met the mysterious hacker Su Qing, and the two worked together to break through the layers of fog, and gradually got closer to the mastermind behind the loop. As the investigation deepens, Chen Mo not only has to face the pursuit of the murderer, but also fights against the mental pressure caused by the cycle, uncovering a shocking secret about the abuse of technology and the darkness of human nature.
