A sceptic one-eyed crime branch Inspector Rishi Nandhan assisted by his two trusted sub-inspectors Ayyanar and Chitra, investigates strange and mind-bending cases involving supernatural or paranormal phenomena. He stops at nothing in his efforts to find the truth behind unexplainable murders while also battling various challenges in his personal life.
Kalairani is a veteran Tamil artiste who has acted in many Tamil films and a performer in Koothu-P-Pattarai dramas.