This is a revenge thriller between a scientist, his son and his evil twin brother. The scientist, Dr. Sethuraman, invents a time machine gadget using which a person can travel in time for maximum 24 hrs. His evil twin, Athreya, decides to snatch the gadget, and in the due process kills his wife. The scientist runs along with his son, Mani, and before his brother could catch him, he hands over his son to a fellow passenger, Sathyabama. Athreya catches up and kills him, but gets severely injured in the process and goes into coma. Sathyabama escapes with Mani to Chennai and raises him as her own son. Years later, Athreya wakes up from coma and decides to hunt for the watch. What happens next forms the rest of the story.