Detective Byomkesh Bakshy! is a mystery-action thriller drama. The movie is based on the fictional detective Byomkesh Bakshi created by Bengali writer Sharadindu Bandyopadhyay. The movie follows the story of detective Byomkesh Bakshi (Sushant Singh Rajput) who gets a case to locate a chemist named Bhuvan Banerjee, who has been missing for two months. He is helped by Bhuvan’s son Ajit Kumar Banerjee (Anand Tiwari) on the case. Soon Byomkesh understands that the case is linked with the greater political conspiracy in Calcutta.