Detective Chen Yuan fell into despair when his partner Li Zhe died on the job, and accidentally discovered the "Counter Current Watch Shop" that can reverse time. He went back to the past time and time again to save his best friend, but it triggered a chain of tragedies: the existence of his wife Su Xiaoqing was erased, and strange shadows grew in the cracks in reality. The store manager revealed the truth - time correction uses "paradox energy" to strengthen the seal and suppress the ancient existence "The Devourer of Time". However, Chen Yuan's intervention has shaken the foundation of reality, eternal rain has enveloped the city, and time and space have completely collapsed. In order to end the disaster, Chen Yuan and Su Xiaoqing joined hands to break into the source of time, using love and memory as anchors, sacrificing themselves to reshape order. In the end, reality returned to calm. Only the pocket watch walking in the opposite direction silently remembered the tenderness and determination that disappeared in the countercurrent.
