Kartha Karma Kriya – Siddhu is a playful youth who works in a mobile store. His only aim is to earn money. As time passes by, he falls in love with Mythri who in turn is looking for the murderer of her sister Divya. Knowing this, Siddhu starts helping Mythri and as time passes by, Mythri finds out that there are two other girls who have died in the same manner as Divya. Who is this murderer? What is Siddhu’s connection with this case? and how will the special cop find out who the murderer is forms the rest of the story.