A battle for power ensues as warring gangters thrive to gain possession of a “black box” that can make them richer than they already are, and an undercover cop intervenes…

Byomkesh, fresh out of college, agrees to investigate the disappearance of Bhuvan, a chemist. Assisted by Bhuvan’s son Ajit, Byomkesh links the case to a larger conspiracy that will unsettle…