Based on the novel Magno Mainak by Sharadindu Bandyopadhyay, the film portrays the iconic Bengali detective Byomkesh Bakshi along with his friend Ajit Bandyopadhyay as he investigates the murder of a Pakistani spy named Heena Mallick. He begins the investigation at the request of a political leader, Mr. Santosh Samaddar, who was a close friend of Heena's parents and had given her shelter after her parents' death. Will Byomkesh succeed?

Khilat, a young software engineer, and Joyee are determined to face any and all problems that life throws at them. Will they ever get there happily ever after?

Neel, an ambitious businessman, has bought a crumbling palace to transform into a luxury hotel. He fails to realize that the stones come to life each night, engulfing anyone that dares to trespass.

A frantic wife seeks Mitin's help when her husband goes missing. What starts as a simple disappearance soon unravels into a murder investigation.

Makar Kanti Chatterjee is a semi-educated self-made businessman who tries hard but often fails to communicate in English. On the other hand, his brother-in-law, Suman, gets romantically involved with a woman married to a reticent forest officer, Ashoke Sanyal. The screenplay is based on the story, Baba Hoya and Swami Hoya, by Buddhadeb Guha.