Pinju Manasu about human relations and emotions pertaining to it. Saravanan and Darshana falling in love, getting married dwell desolate since they have no child born to them. Well, a child born after period of 8 years gets them delighted as they consider the child to be god-gifted one. Their complete happiness and paradise-like-feel is completely deteriorated once as their child is missing. Rest of the story is all about their search of their beloved one, series of their pains, sorrows and emotions weaved together.