An elderly Punjabi man and a Bengali widow fall in love, shocking their contrasting families.

A disoriented Romit Sen is found in his car covered in blood, while his protégé, Diti, is nowhere to be found. Diti's mother, DCP Brinda Basu's relentless search begins.

Mukherjee Dar Bou is a story based on a modern dysfunctional family revolving around the complex and intricate yet caring relationship of a mother-in-law and daughter-in-law. The story revolves around a Bengali home maker whose name is not known till the end of the film, and who is mostly referred as "Mukherjee Dar Bou". Mukherjee Dar Bou (Aditi) is married for more than ten years and has a daughter of six years old . Aditi's married life was usual but it takes a turn when her father-in-law passes away.

Kartik and Ganesh join an institute to become successful thieves. They befriend Safai Lal who dreams of becoming a minister by learning how to steal.