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.
A sceptic crime branch Inspector Rishi Nandhan assisted by his two trusted sub-inspectors Ayyanar and Chitra, investigates a series of bizarre murders in a small mountain village, supposedly committed by a deadly forest spirit called the Vanaratchi.