During the British rule, Thangalaan, a fierce tribal leader, and his tribe assist Lord Clement, a British General, to trace gold in their village. While searching for the gold, the villagers earn the wrath of Aarathi, an apparent sorceress, who Thangalaan sets out to stop with all his might.

Conservative middle-aged fisherman Singaram cares for his orphaned niece and nephew who he loves deeply. As Singaram works hard to provide for his family, he also tries to arrange a groom for his niece. But she rejects the many suitors he brings, and he soon learns that his niece is in love with her fellow female teacher. Ostracized by his community, Singaram tries to come to terms with his niece being a lesbian and through the process he learns to empathize with the plight of the village barber Alankaram, who is transgender.