Summary Calcutta, 1964. Rajkumar, 40 years old, is found dead in room number 102 of hotel Anupama. Dr Shobhna Roy (Ramna Wadhawan) stays in room 101. Death occurred between 9 pm and midnight. The weapon was a sharp object that pierced the heart precisely. The murderer is a professional. Rajkumar's face is disfigured, but it is an old injury. Shobhna is a widow, 45 years old, of Dr Ram Ratan Rai. Shobhna is a gynecologist based outside Calcutta but comes to town for NGO work. She had one girl, who died many years ago.

Shobhna claims that she went to sleep at around 9 15 pm but kept hearing the adjacent room door being opened and closed between 9 30 and 10 pm. In the morning, she attended to a person in room 103, who was suffering from cold and fever.

The diary found in the room has name Sukant Som on the front page. Byomkesh reckons that's Rajkumar's real name. Each page of the diary has the name of a city & some additional names & value (against each name) on it. The occupant in room 103 is Sachin Sanyal, who has a ghee business & comes to Calcutta to meet his customers. He has been in town for 3 days and was to return but got held back due to his cold. He says that Sukant is the same age of his brother-in-law who died a year ago. He doesn't know any Rajkumar.

Harishchander (Chandra Mohan) is the manager of the hotel, who has been living at the hotel for 8 yrs. He had opened room 102 in the morning to discover Rajkumar's body. Rajkumar used to come to the hotel twice a year for last 5 yrs. He stayed for 2-4 days each time. He says that this time Rajkumar had kept Rs 5000 with him. He claims that he was out of the hotel between 9 pm and 12 pm on the night of Rajkumar's murder.

The hotel servant served dinner to Rajkumar in his room at 8 45 pm and collected the dishes at 9 15 pm, at which point Rajkumar was alive. The hotel security guard, Rampirit Singh (Shivaji Sanyal), says that 3 people met Rajkumar on the day of his murder, 2 male and 1 female. The female came at 9 15 pm. She left after 5 minutes. 1 male came at 9 30 pm and left in 5-6 minutes (thin and had little mustache). 2nd male came at 9 45 pm and left in 5 minutes (fat & round Bengali). Rajkumar's diary had 4 names against Calcutta, 3 male and 1 female.

They trace the first guy on the list, Jagabandhu (Tushar Trivedi), who runs away when they arrive. The second guy Mohanlal Kundu is out of town. 3rd guy Shamakanth is in office. Female is Latika Choudhary (Meenacshi Martins). Latika reveals that she is from a rich family & when young, she had a crush on actor Sukant Som 12-13 years ago. She had a relationship with Sukant (she wrote letters to him and even met him secretly), only to find that he was married. Latika was married soon after to a different guy.

Then Latika read in papers that Sukant was arrested for the murder of his wife but was let off when he proves it was for self-defense. Wife attacked Sukant with a knife & he strangled her in self-defense. But in the fight, his face was disfigured, and his acting career ended. That's when Sukant met Latika & blackmailed her for Rs 300 every 6 months in exchange for his silence about their affair.

Byomkesh reveals that Sukant's wife, whom he murdered was Dr Shobhna's daughter Sharmila. Sharmila married Sukant as she wanted to be cast as heroine in films. But Sukant never made any progress in this direction. Sukant also cheated on Sharmila. This led to their fight. Shobhna claims that Sukant killed her daughter first & then disfigured himself, but Byomkesh believes that the court version was correct. Sukant had no reason to disfigure himself as his livelihood was dependent on it. Shobhna saw Sukant in Calcutta by chance & decided to take vengeance. Shobhna killed Sukant around 10 pm when all people had come and gone.

• Adventure
• Crime
• Mystery
• Thriller