Kalabhavan Santhosh

Three out of four brothers of a Malayali household are happily married while the fourth brother is engaged. When the beautiful Yamuna Rani becomes their new neighbour, she poses a threat to the wives.

Anandakkuttan, a junior artist in films, is forced to look after his brother who is autistic. Though unwilling and hesitant in the beginning, he soon develops a bond with his sibling.

Chandru works in a small hotel and has two females as his admirers but he lusts behind his employer.