Vivaan Agasthi is married to his college sweetheart, Siya, and the couple struggles to make ends meet when Vivaan loses his job. Around their 5th anniversary, they win a trip to
Fiji in a lucky draw. The holiday is fully sponsored, with luxurious hotel accommodations and fine dinners. At the resort, Vivaan and Siya encounter the charming Mr. Khan, who invites them to participate in his live game show,
Table No. 21. He tells them that the winner of the game bags a staggering
₹21 crore in prize money. Eight personal questions will be asked that must be answered truthfully, and following each, one must complete a task related to the question. Lie detectors are attached to their wrists, for which Mr. Khan lets the couple know that if they lie, they die. After some thought, the couple decides to enter the game show. At first, the questions seem easy, but as the game progresses, the tasks become increasingly uncomfortable and horrific. Many murky details emerge, such as Vivaan slapping Siya for having had an abortion without his consent, and Siya sleeping with her boss to keep her job. Vivaan's final task is to murder an individual. He is led to a room, where he is to face his target. When he sees the person he must kill, he recognizes him from his past. A flashback shows Vivaan, Siya and their friends in college
ragging an underclassman named Akram. The ordeals that Vivaan and Siya had suffered were based on the same ordeals that they inflicted on Akram - public humiliation, forcing him to eat non-vegetarian food, dousing him in blood, etc. The severe bullying compelled Akram to approach the principal, but Vivaan and his friends captured Akram before he could react, stripped him naked and shaved his head while filming the act. This humiliation caused Akram to become
mentally challenged. Back in the present, it is revealed that Akram is Mr. Khan's son and that Mr. Khan's intention was to exact retribution from Vivaan and Siya for reducing his son to an empty shell. Mr. Khan tells them that they are free to go, but their sins will follow them everywhere. The movie ends as Vivaan and Siya are still shocked – crying and regretting their choices. ==Cast==