During a routine check of her memory chip, neuroscientist Sang Ying discovered a bloody murder memory. This memory did not belong to her, but it clearly recorded the scene of her killing her childhood friend with her own hands. As she begins to investigate the source of this memory, the entire city's data systems begin to turn against her. The appearance of former police detective Cheng Ye brought a turn of events, but also led to a deeper mystery: the memory storage technology developed by Neuron Technology Company is quietly tampering with the memories of thousands of people. When Sang Ying finally gets closer to the truth, she must face a reality more terrifying than murder - the person she thought she might have never really existed.