In life, we are constantly reflecting on our decisions and sometimes imagining the infinite possibilities. Constantly daydreaming on what would have been. Divya is such a person, who lives through a mundane life always complaining that her life would have been different if only she had done this or not done that. Working as a librarian in the local library, she is full of regrets on how her life has turned out.

Abhi has a weird dream. She sees her mother in the dream. Dharshini forces Abhi to attend their JC reunion party. Meeting after 10 years, her ex-classmates all share how successful they are in life. Keerthi taunts her for being a nobody and starts to feel inferior in front of her ex-classmates.

Abhi is shocked to find out that her ex-classmate Keerthi is now her boss at work. She laments to Aryan, her boyfriend, about it. He also doesn’t understand her feelings.

Abhi is confused about the recurring dream she has been getting. She is shocked when she finds the mysterious book that she has been seeing in her dreams in the library.

Abhi realizes that the mysterious book is a time-travel tool. Apprehensive about it, she tries to find out if time-travel is possible.

Dejected that Dharshini is going to migrate overseas and Aryan not able to understand her, Abhi decides to time-travel to the past to change her future. She is transported back to 10 years ago, when she was 18 years old.

18 years old Abhi wants to be more present and vows to spend more time with her mother. Though her father and sister Harini are unable to celebrate her mother’s birthday, she celebrates it with her.

Anu notices a lump near her throat and wonders what it is. Meanwhile, Harini informs Aadhi that her parents know about him and would like to meet him.

While Abhi is trapped in a lift and unable to meet Dharshini and Bharath for a movie date, Aryan gets implicated of molesting Dharshini at the theatres.

Abhi time-travels back to the same theatre day to find out if Aryan really is guilty of molesting Dharshini.

Abhi is worried about about her mother’s health and is unable to concentrate in school. Keerthi taunts her and Abhi has a breakdown.

Bharath tries to convey his feelings to Abhi but is upset when she doesn’t come to school. He is even more puzzled when Aryan comes looking for her in school.

Abhi and her Father are not convinced that Aadhi is right for Harini. Abhi tries to dissuade Harini about getting married to him but to no avail.

Thinking that she has saved her mother from dying, Abhi is relieved and happy. She decides to focus on doing well in her studies.

Aryan proposes to Abhi and asks her to be his girlfriend. Abhi happily agrees and shares this happy news to Dharshini and Bharath. Bharath is heartbroken.

Abhi wants to prove to Harini that Aadhi is a conman by getting some evidence. She asks Bharath to help her.

When Abhi and Bharath find out that Aadhi has been lying about everything, they decide to follow him. Meanwhile, Aryan tries to get hold of Abhi and is devasted when he finds out that she has been lying to him about her whereabouts.

Abhi shows Harini the video evidence she took of Aadhi. When Harini questions Aadhi about his business, he becomes evasive. She decides to follow him.

Anu gets a call from the police to identify a body. Abhi and she is shocked. When they find out that Harini is dead, Abhi regrets telling her about Aadhi’s true character and time-travels back to the past to rectify her mistake.

Abhi decides to time-travel back to the present after saving Harini and feeling assured that Anu will also be saved. In the present, she is shocked to find out that she is now a boss and engaged to someone else.

Abhi is confused on the changes in the present. She is unable to find Aryan and finds out that Anu succumbed to her illness and is not around anymore. She wonders what happened the past to bring about these changes.

Abhi is very uncomfortable when she is around Bharath. She wonders how did she end up being in a relationship with him.

Abhi tries to find for Aryan but is unable to find any information about him. Meanwhile Bharath talks about wanting an extravagant engagement causing Abhi to panic. She requests Bharath for postponement of the engagement.

Abhi time-travels back to the past only to find out that her mother actually has a deadly illness and that no matter what she does, she will not be able to save her.