The former art director Menon’s directorial debut stars the scenarist of this crime melodrama. Having unintentionally murdered a man to save his sister’s honour, Thumman flees and finds shelter in a fisherman’s hut where he falls in love with his benefactor’s daughter Rosy. In spite of the obstacles, the lovers decide to marry. When a police inspector appears in the village, Thumman and the pregnant Rosy escape to the mountains and are sheltered by a Muslim friend. Eventually, Rosy dies giving birth and Thumman, having buried his family, calmly allows himself to be arrested.