A cross-dimensional horror reality show called "Infinite Heartbeat" randomly selects "amateur" participants to enter various horror replicas. Those who pass the level will receive huge bonuses, while those who fail will stay in the copy forever. The heroine Su Xiao is a former e-sports champion. After retiring due to a hand injury, she was forced to compete to pay for her younger brother's medical expenses. However, she discovered that she seemed to have a special talent-the ability to see "loopholes in the rules" in the copy.
After Su Xiao participated in the variety show, she gradually discovered that there was a huge cross-dimensional conspiracy hidden behind this show. Each copy is a real parallel world, and the program team obtains some kind of energy by manipulating the life and death of the participants. During the process of clearing the level, Su Xiao met the mysterious teammate Lu Chen (actually an interdimensional agent investigating the matter). The two teamed up to reveal the truth, eventually overthrowing the program team and liberating countless trapped participants.
