The murder mystery of historian, Ishan Chandra Majumder, where Byomkesh along with Ajit and Pandey, tries to demystify the real reason behind the series of deaths in the family and the gold coin.

Kinshuk, a consultative criminologist in the Kolkata Police.

Six friends who were extremely closely knit in their college days reunite for Tanya's bachelor party in Madhupur. However, all six of them are bound by a horrifying incident which had torn them apart for years. The reunion serves to rake up the trauma afresh, turning an idyllic trip into a dangerous cat-and-mouse game. The friends embark on a round of Mafia, the popular game which many of us enjoyed playing in our childhood. Instead of serving as a bonding activity, the game brings out the worst in them, fuelling each of them to act on their hidden agendas filled with deceit and betrayal.

Five interrelated women and the men in their lives, each having a separate tale and contrasting behaviour, experience catastrophic life events, which leads to introspection in the city of Kolkata. In this dog-eat-dog-world, where karma is just around the corner and where time waits for none, we follow the characters on their journey of love, lust, passion, revenge and redemption.

Aniket must solve the case behind dead children ghosts and discontinue his fathers magazine based on ghosts.He takes the help of Nandini,a girl who can see ghosts.