Dr. Baladevi (Seema) is a gynecologist. She is very attached to her brother Thilakan (Shankar) after her parents pass away. Thilakan is going to U.S.A to pursue his studies while leaving he tells Baladevi about his girlfriend Subhashini and wanted her to take care of Subhashini. What happens next is the story of Sandhyakku Virinja Poovu. Watch Sandhyakku Virinja Poovu movie online.