Hulchul (1971)

Peter (O.P. Ralhan) overhears a conversation between a man and a woman plotting to kill the wife of a "Mahesh Jetley". Being a very sincere, diligent, and a concerned citizen, Peter sets out to try to warn Mrs. Jetley of the apparent threat to her life. After overcoming a number of obstacles, including convincing his prospective mother-in-law Philomena D'Costa (Tun Tun) that he is not possessed by a demon, he discovers that not one but several Mr. Jetleys have a number of motives for killing their respective wives. Will Peter uncover the real Mr. Jetley whom he overheard, or will he uncover a number of dead Mrs. Jetleys?