To farm gear in a game, Qi Xiaorui gets a special game mod from an online acquaintance called "Visitor from Hell." But he soon discovers it can alter time in the real world. After changing the timeline, he unexpectedly encounters his friend Jiang Chuhan, who died just three days earlier. Looking back, the two had fallen out over a loan and a girl they both had a crush on. Before Jiang Chuhan died, Qi Xiaorui had seen him in danger and done nothing. Desperate to make up for his regret, Qi Xiaorui tries to stop the tragedy from happening again, unaware that he's fallen into an even bigger plot. Jiang Chuhan is using the mod to find someone to die in his place, and "Visitor from Hell" is actually Liu Feifei, the girl they both liked. In the end, Qi Xiaorui is hit by a car, and Liu Feifei turns her sights on Jiang Chuhan.
