It's the 66th birthday of former superstar Tony Roy, who has retired to Darjeeling. His local friends gather for his birthday party, where Roy suddenly collapses.

Amitabha finds a diary at Sheela’s place and it reveals a dark chapter of Tony Roy’s life. When Amitabha visits filmmaker Bijoy Mukherjee to know more about Tony Roy, he makes a stunning discovery.

While Tony Roy's friends attend his funeral, Amitabha follows up the clues found in the secret diary. On this trail, he is suddenly confronted by a sinister Bob.

Amitabha finds a telling photograph at Dr. Neema Pradhan's clinic and another vital clue at DSP Subhankar Banerjee's place.

Bob rescues Amitabha from serious trouble. Amitabha reveals to Tony Roy's wife and his friend that someone might have killed the deceased star. Another murder taints the peace of Darjeeling.