David Fiskand Thomas Cowanare a pair of veteran New York detectives. The two have worked together for 30 years under the high-pressure work environment of the New York Police Department. Facing retirement. However, before removing the police badge, they have to deal with a case, because judging from relevant information such as the modus operandi of this case, it seems to be related to a case they have dealt with a long time ago.
The victim in this case was also a suspect in another case, and beside his body there was a four-line poem about punishing evil and promoting good. A series of cases that David and Thomas dealt with a long time ago also adopted the same technique. The targets chosen by the murderers were criminals who took advantage of the law. He punishes those who have successfully evaded legal sanctions with a gesture of acting for the heavens. But the problem is that the murderer of that series of cases has been arrested and brought to justice. These new similar cases now make David and Thomas have to start to wonder: Could it be that the wrong person was caught in the first place
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