A man's son is kidnapped. His kidnappers demand 50 lakh rupees to have him returned, also threatening that if the police get involved, they will kill him. Nonetheless, the man contacts CID. This regular case takes an unusual turn when another ACP from the CBI puts himself on the case to help. Will CID, with the help of this new ACP, solve the case and catch the kidnappers?

ACP Santos has the bright idea to mark the notes with a blue pigment, so that the kidnapper's hands turn blue and he becomes easy to spot. Surely, the case has been cracked. However, when it is revealed that ACP Santos might not be who he seems, a new mystery must be solved. Will CID find out the true identity of this counterfeit cop?