Nabi who suffers from Epilepsy is hired by Khosrow to follow his fiancé Golrokh in order to find out about the male lover Khosrow presumes she has. Nabi finds out that Golrokh has a suicidal car accident and tries to help her. However he is not aware of the whole truth.

A rich man named Sohrabi adopts a little boy named Ali. As an adult, Ali takes over the management of the Sohrabi factory with diligence and perseverance.