Two officers with a history of punishment transfers begin working together, each with their unique approach and inimitable style. Surrounded by people with their own personal agendas and animosities, the two navigate intra-departmental dynamics as they race to solve a murder and nab the killer. 'Thalavan' stars Biju Menon, Asif Ali, Miya George, Anusree, Dileesh Pothan, Shankar Ramakrishnan, Ranjith and Kottayam Nazeer.