The film stars Prem Nazir, Sheela, Kaviyoor Ponnamma and Adoor Bhasi.
Kaviyoor Ponnamma is married to Thikkurissy Sukumaran Nair, the eldest in a well to do family.
Soon the misunderstandings are sorted and Prem Nazir falls in love with a feisty girl Janu (Sheela) and marries her.
In the mix arrives the flamboyant son in law of the house, who is basically living off his wife's family.
Janu is rushed for a caesarean and her elder sister in law donates her blood to save her, dying in the process.