[5] While on vacation at Darjeeling, art teacher Seema Rai met a charming stranger named Narayan Chowdhury.
When she returned home, she found that her apartment had been vandalized and was told by the police that her estranged uncle Suresh had been killed.
Mr Neogy asks Seema to still search her home thoroughly as he believes it is possible that Suresh hid those diamonds in her house while he visited at the time of her vacation.
Narayan keeps an watch on Seema's apartment at night and while doing so, he is abducted by the gang members who ask him about the whereabouts of the diamonds.
The little boy from her downstair neighbors tells them that her uncle came looking for Seema while she was in Darjeeling and left a Buddha statue at their place.
Seema gets frustrated with the menaces and decides she will get rid of everything received from her uncle and just cut her fathers photo from the frame for keepsake.
When Narayan flees the gang members den and reaches Seema's house, he gets to know she left for Mr Neogy's place.
Seema is taken to the police headquarters and informed that the person claiming to be Mr Neogy was the fourth member of the gang who killed the diamond merchant, Suresh and Badru.