Bani Chowdhury and solicitor Ajoy Kumar are deeply in love with each other. But their world comes crashing down when Bani's cousin, Maya is found dead in the first class compartment at a railway terminus in Bombay. Bani who had gone to the station to receive Maya, is charged with the murder. A distraught Ajoy with the help of his assistant Motilal Sharma begins to comb the country for every available clue. And just when everything seems lost he gets a breakthrough.