The film is loosely based on the 1992 murder of Sister Abhaya in Kerala.

Sister Amala, a nun, is found dead in the well of the convent where she was staying.

Idamattom Palackal Easo Panickar and his team find out the truth behind Sr. Amala's murder.

Clement Kaliyar and the local legislator Monayi, and a hitman – Cardinal Carlos.

Then, Easow Panickar arrests, the collector Paul Varghese, with the support of the Chief Minister.