Crime Chase: the Psychological Portrait of Evil

Two similar murder cases occurred in Donghe District of Wei City. The first victim, Wang Yuemei, had her joints broken and her neck broken. The second victim, Qi Meimei, was stabbed several times and died. Both deaths were the same as those of the animals they abused. While the police were investigating in depth, a third similar murder occurred. At the same time, a series of arson cases occurred. After collecting evidence and analyzing the evidence, the police determined that the murders were committed by the same murderer and were a serial murder case, and the arson case may be related to this. Just when the case seems to have a clue, a new serial murder occurs, and the method of committing the crime is completely different from the previous serial cases... Investigate, find the murderer, new murders occur, investigate again, find the murderer again... The police seem to be trapped in an endless loop. Who is the real murderer? What troubles the police even more is, why did the murderer kill people in this way? It seems that killing is not the purpose, but the means...