Kala (bhama) is a fourteen year old girl who is doted upon by her elder sister Neela (sajitha) and her husband Bharathan (nandhu). But the couple fails to have children and it turns out that Neela is infertile. Bharathan takes to drinking and decides to marry another woman. At this juncture, Neela forces Kala to become Bharathan’s second wife. What happens from there forms the rest.