The character 'Kuttichathan' is formed on the basis of the specialties of a deity popularly known as 'Chathan' who is being worshiped mainly in the south Indian state, Kerala. There are cruel magicians everywhere in the world.
Appu is very close with his elder sister, Malu. When she gets married to Govindan, she takes Appu along with them. But problems arise when Appu becomes jealous of Govindan.