The much-awaited homecoming for the trio takes a turn when Eken is appointed to investigate a mysterious death in the City of Joy.

Eken, Bapi and Pramatha start interrogating the usual suspects while the city witnesses another murder, thereby setting off a bizarre number game.

Eken becomes desperate to find any connection between Bikash and Tanmoy that can help in cracking the number game. Meanwhile, the killer makes his next move.

While the case gets more complex with mystifying discoveries about Bikash Sen, the killer suddenly changes the pattern of his number game.

The revelation of Bikash's gruesome past leads Eken to untangle a crucial end of the case. Rupal comes back to reveal the main culprit.

Eken makes a shocking discovery about an old unsolved case that unveils the perpetrators.