Mishti, a housewife, is taken for granted by her husband and ignored by her children. Cheeni, is full of life and has big dreams. These two women bond over their shared struggles and embark on a journey of self-discovery together.

The murder mystery of historian, Ishan Chandra Majumder, where Byomkesh along with Ajit and Pandey, tries to demystify the real reason behind the series of deaths in the family and the gold coin.

Kinshuk, a consultative criminologist in the Kolkata Police.