Unni accepts Devaki as his wife and brings her into the fold of his Namboothiri illam. Bound by a plethora of traditional beliefs, customs and rituals that constitute life within four walls of the joint family, Unni is unable to be the husband that he would have liked to be. Yet, they understand and love each other immensely. Guarded by the fortress of tradition, the family remains oblivious to the winds of change sweeping through society. Though Unni is aware, he shuts the door to everything that his family will never be able to comprehend or accept. But Devaki, who is essentially of a different mould, longs to step out into the world - and is finally forced to do so. Set in early 1930s, the story develops within walls of a Namboothiri Illam, in the South Indian state of Kerala, against the backdrop of the struggle for freedom from the British rule. The film opens in Haridwar, a holy city, where Thankam, Unni's younger half sister (of same father; Unni's mother was Namboothiri and Thankam's mother was Nair) has come to immerse Unni's ashes in the Ganga and trace Devaki, who now is an ascetic. The story is revealed through the reminiscences of Thankam, a mute spectator who is caught between these characters and the complexities of their relationship - complexities that can never be relegated to the realms of right and wrong.