Ananth, a successful writer, unwillingly revisits his family home. Meanwhile, an estranged father dives into the past to learn about the journey of Venkatesan and his wife Maragatham in their home called 'Anantham.'

Ananth learns the story of a married couple who lived in the house in 1971—Sundar and his visually impaired wife, Seetha. He witnesses Seetha's plight during the days she spent within the walls of Anantham.

Set in 1975, witness the struggling lives of Sandeep, an IIT graduate, Rekha, his happy-go-lucky wife, and their two children.

Ananth recalls the first time he fell in love in 1985 and how it changed his life forever.

Three beautiful women living in 'Anantham' experience laughter and love after Krishnan Menon, a new paying guest, moves into their home.

Tenants Lalitha and Balu return to stay at Anantham. But, will they have a peaceful stay at Anantham despite the horrible sins committed during their previous stay?

Ananth meets a young psychotherapist, Parvathy, who tells him about her painful journey and how she broke barriers and embraced her true potential while living at Anantham.

Venkatesan returns home to spend his remaining days at Anantham. As he nears his end, will he reconcile with his son and embrace peace?