It all starts when Mrinmoy Ghosh (Kaushik Sen), the powerful head police officer in Hatimara, Jalpaiguri, known for hunting down Naxal insurgents in his area, is found dead at his residence. Arghya Sen (Prosenjit), a charming middle-aged bachelor, who takes Mrinmoy's son Amartya's art classes, visits their house when the mystery unfolds. On his arrival, he learns that not only has Mrinmoy been killed, but Kaberi Bhattacharya (Srabanti), Mrinmoy's beautiful sister, is also missing! Will the new officer-in-charge, Pritam Singh (Indraneil), be able to help Arghya and Mrinmoy's family track down Kaberi, and decode the clues behind Mrinmoy's murder, in the midst of a politically tumultuous era? Or will the drunk and irresponsible detective Gokul Debnath (Kaushik Ganguly) derail the investigations, and bring unforeseen truths to light?

After Suman suffers an accident, the two women in his life - Meghna, the wife, and Shubhra, the ex-wife - are compelled to meet each other. Ardhangini revolves around the awkward emotional duel between the two wives - past and present - in a time of personal crisis.

There is a gruesome killer on the loose in the streets of Kolkata. He thinks he is Duryodhana reborn. He has managed to kill his Draupadi, Sahadeva and Nakula. Will he get to the rest of the Pandavas? Based loosely on Mahaprasthanika Parva, or the "Book of the Great Journey", is the seventeenth and the shortest of eighteen books of the Indian epic Mahabharata.

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.