Midhunam movie is all about Sethumadhavan (Mohanlal) who has plans to start a biscuit factory near his house. But the bureaucracy and the corruption of the officials are the hurdles in front of him. Along with that he has to solve the problems in his family, which his brother (Innocent) and brother-in-law (Jagathy Sreekumar) creates. he marries his long-term fiancée Sulochana (Urvashi) who always cribs that he doesn't have love towards her, which he had shown before their marriage. How sethumadhavan succeeds in his life beating all the odds against him forms the rest of the story.
Mohanlal
as Sethumadhavan
Urvashi
as Sulochana
Sreenivasan
as Preman
Thikkurissy Sukumaran Nair
as Kurup Master
Sukumari
as Swamini Amma
Innocent
as Kurup
Jagathy Sreekumar
as Suguthan
Janardhanan
as Sivaraman
Zeenath
as
Sankaradi
as Sethu's Maternal Uncle
C I Paul
as Chief Engineer Karunakaran
Kuthiravattam Pappu
as Peethambaran
