A boy and girl fall in and out of love, several times over.

Two brothers envy their step-brother Shiva as he is their father’s favourite. Since their plan to deal in drugs and arms is opposed by Shiva, the two brothers hatch a devious plan to bump him off.

Arun (Siddharth) and Parvathi (Amala Paul) give an interview about their love story. But they fight even before the interview gets over. Then the movie rewinds 5 months earlier. Arun meets Parvathi in a college canteen and soon they become friends. Parvathi has problems at her home as her mother Saroja wants to divorce her father Akilan. Arun and Parvati fights for trivial reasons and then get together. Movie revolves around how little things may contribute to break ups.

Thadayam Mudhal Adhyayam (Tamil: தாதயம் முகல் ஆத்யம்) is a Tamil-language Action film which is Directed by Mani Karthi & performed by Linga, Maheshwaran, Suresh and Released on 17 July 2020.