Bhagya Lakshmi falls head over heels for Karthik. She tries hard and somehow wins over Karthick. When everything seems to be going fine between the couple, Karthick's ex-lover, Vaishnavi come into the scene and disrupts the love story. Why did Vaishnavi come back into Karthick's life? What problems did she create and how does he come out of this mess? That forms the rest of the story.

Jeeva (Allu Sirish) leads a happy life with his lover turned life partner Surabhi, until he gets to know his neighbor and their life. The couple witnesses bizarre coincidences and similarities between situations happening in their neighboring couple's (Avasarala Srinivas - Seerat Kapoor) life and their own lives. As they get to see an unfortunate incident in Avasarala Srinivas family, now, going by the parallel lives theory, is what the thrilling Okka Kshanam is all about.

A youngster tries to protect his sister-in-law, a transport official, from a dreaded goon who runs an illegal road transport business.