Kirtan is the story of a father-in-law and daughter-in-law who disagree about leaving their ancestral home and shifting into a new apartment.

Hemanta, a student of filmmaking in New York, returns to Kolkata before his mother is going to marry his uncle after his father's suicide. He receives a series of untraceable texts in riddles arising suspicion on the true nature of his father's death. He starts to lose his conscious self and plans on taking revenge upon the killers.

Abinash, his son Arup, and daughter-in-law Monimala continue their constant bickering even after shifting to a new flat, with Arup endlessly stuck between them. When circumstances force them to find another home, Abinash revisits their old house only to discover a tenant now lives there. What follows is a chain of hilarious misunderstandings and escalating family drama, leaving their future up in the air.

Take a trip back to the 90's in Kolkata when moments spent even during a load shedding were priceless.