Pitchi Maaraaju ( 1976 ) , Telugu
Synopsis: " Gopi meets Radha, a doctor in train. He pretends to be mentally ill due to which she takes him home and starts his treatment. She eventually falls in love with Gopi, who turns out to be a C.I.D officer. He is assigned to investigate about a murder mystery which had occurred in Radhas house. Will he succeed in his work or will his love come in between? "