Bhavani is a no-nonsense inspector at a police station composed primarily of female officers, consisting of a head constable, two constables (Rosa and Chithra), and a driver Bhupathi. Bhavani is engaged to the engineer Subramani, whom her family had helped support financially. They are shown to be a happy couple. Tragedy strikes when Deputy Commissioner Nagaraj, aided by the unapologetically corrupt Assistant Commissioner, sexually assaults Chithra. Bhavani is determined to get justice for her subordinate but faces numerous ordeals, including having to choose between her fiancé and her morals.