In my story, a cop is on the trail of a serial rapist killer type villain, and he himself is raped by the villain eventually, but escapes and wants revenge. The other cops cannot catch the villain because they have to play by the rules, and the villain is always too good at slipping through the legal and forensic cracks, if that makes sense. So the main character grows impatient and wants to manipulate the police department into bending the rules and stepping outside the box to catch them. The story also uses the old cliche that the main character cop, cannot get his captain to take him seriously and is criticized by him failing, so he does not get much support. In my case though, he decides that the best way is to take samples of the captain's DNA, fingerprints, etc, and plant them at the next crime scene, when the next crime happens. He thinks that this will insure that the captain will want to take down the villain really seriously and urgently, if there is evidence of him, implicating him in the next murder. The main character, hot on the trail, fails to stop the next murder from happening, but manages to get there before any other cops are called to the scene. He then plants the captains DNA and prints there, before other officers arrive. The captain is then facing possible murder charges, implicated in the crime. He has a small window to escape arrest and convince his officers below him to follow his orders and go take the killer down, by executing a plan by the main character, that was not taking seriously before. But now with the captain's life on the line, he is okay with using unorthodox methods to get the villain, and hopefully get him to confess and clear the captain's name. This is what the main character was counting on. Manipulating them captain into doing whatever it takes, letting the ends justify the means, and thereby getting others on the force to help him as well. Does this sound like the idea is perhaps too illogical, even if the main character is desperate for revenge and is not thinking the most clearly, or fairly?