Byomkesh Bakshi.

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.