Jahangirer Swarnamudra (1998)

On his 50th birthday, a businessman invites his business partner, a former classmate, and a friend. After supper, the electricity goes out while the man is displaying some rare coins from Jahangir. The next day, the man discovers one of his coins is stolen. The businessman hires Private Detective P.C. Mitter (Feluda) and those three people exactly one year after inviting them. Then the narrative continues. —yeasirtalukder