A Bengali detective, Byomkesh Bakshi, attempts solving mysteries with logic and his remarkable analytical skills with the help of his friend and assistant Ajit.
Set against the backdrop of The Partition, Byomkesh Bakshi and his assistant Ajit must solve the murder of the head of the dysfunctional Halder family.
Byomkesh, a detective, stumbles upon a case of robbery while recuperating from a prolonged illness. With the only object to be stolen being a group photograph, he attempts to solve the mystery.
Byomkesh is called upon for help by police to solve the murder mystery of a wealthy old man Benimadhab and his servant Meghraj. He and Ajit finds the case submerged in crooked intentions of family members.
The curtain rises on a small coalfield town. Plagued with a series of unexplained troubles that broke out suddenly, owner of a coalmine seeks the help of Byomkesh Bakshi to sort things out for him. When Byomkesh arrives with his trusted confidante Ajit, they discover to their complete dismay a maze of crimes woven around a violent murder that had little to do with the job that they were entrusted with. A mesmerizing mosaic of criminal characters, a sordid saga of lecherous lust, the thriller unfolds the complex layers of the human mind.
The story revolves around a retired judge, Mr. Sen, living in a farmhouse on the outskirts of the city. The people who stay in the colony are a handful of social outcasts. One day, the judge is found dead under mysterious circumstances, and Byomkesh takes up the case.
The film starts with the hint of another story 'Satyanweshi' where young Byomkesh caught the head of a cocaine racket who is now seeking revenge. On the other hand, a young girl dies in mysterious condition having a match stick in her hand. One Kokonad Gupta, who claims to be a fan of Byomkesh gifts him a matchbox.
