Kottayam Kola Case (1967)

Sethumadhavan changed his style to make this joint family melodrama that turns into murder mystery. The two brothers Shekhar and K.G. Nair part ways when the latter refuses a loan. Shekhar, who leaves his wife to live with his mistress, is mysteriously murdered. Police investigations disrupt the marriage ceremony of Shekhar’s son Prabhakaran. When Nair’s son Rajan is the next to get killed, the police accuse Prabhakaran. He, however, evades arrest and eventually catches the real criminal, Nair himself.