The film is based on a rich gentleman named Thoma who has severe speech disability from birth. Since his mother died on delivery, his father Plapparambil Paulo was not interested in spending money for his son's treatment. Paulo is a ruthless loan shark who confiscates all the loan defaulters belongings. He has three sons - the elder one is Plapparambil Mathai, the middle one Joykutty and the third being Thoma. Plapparambil Mathai falls in love with a Muslim girl and marries her. This makes his father angry so Mathai converts and becomes Musthafa. Paulo wished to marry his son off for a huge dowry, so he focuses on finding a rich alliance for his middle son but no one was interested in associating with the Plapparambil house.