Qi Qingyuan, a second-year postgraduate student at Qingdao University, was accidentally found unconscious beside the school playground, and the surveillance records were erased afterwards. Xiao Bai, who was temporarily in charge of investigating the case for some reason, was ordered to close the case in two weeks, but he had another case on his hands. Lu Keling, a first-year PhD student at Jiaotong University, was found unconscious in a monitored laboratory. The same traces of injuries on different parts of the body were found, and the same monitoring records disappeared. Is all this a coincidence or a plan? Will the two unrelated students have some kind of connection...
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