When the team has to deal with not one but several murders, with every case having a probability of a different killer, they are left confused. However, at one of the crime scenes, the team is successful in deducing that all murders took place by a gunshot and the mark of nozzle on the bullet is the same in all cases. They trace their way to a history sheeter, Vikas, and uncover the mystery of the cold-blooded murders.
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