The movie starts off with a flashback that's being narrated by Urvil (Tanuj Virwani). It is the flashback and a series of events from his past that has defined his today. The flashback starts off with a fashion show organised by his event management agency in Phuket, Thailand. And after completing the event successfully, Urvil and his colleagues go drinking to celebrate. It is here that his friends challenge him to speak to a random stranger (Sunny Leone) for a few thousand rupees. An attempt to win the bet gets him introduced to the stranger who, in turn, introduces herself as Celina.
What follows after that, is unlimited liquor drinking by the two of them, which ultimately lands them up in bed together. But, the very next day, when Urvil gets up, he finds out that Celina has already left the room, without leaving any details of her whereabouts. And when Urvil comes back to his home in Pune, he is welcomed by his beautiful and dutiful wife Simran (Nyra Banerjee). Things are absolutely smooth between the couple until one-day Urvil accidentally spots Celina in the same mall wherein he has gone for shopping with his wife Simran. That very sight of Celina freshens up his 'one-night stand' with her, which, in turn, gets translated into his desperation to meet her again. Thereafter begins his unending quest to hunt down Celina from the length and the breadth of the world. Amidst all this, Urvil gets extremely busy with his company's big-budget event of a product launch.
It is here where he gets introduced to his rich client Adhirajkapoor (Khalid Siddiqui)and his family, which takes the daylights out of Urvil. The mysterious lady Celina is none other than Ambar, wife of Adhiraj, who along with their young son Jahaan (Rehan Pathan) and Adhiraj's father Raghav (Kanwaljeet Singh) stay in their posh villa in Koregaon Park, Pune. Urvil loses interest in his job and wife and stalks Celina/ Ambar. His colleague David (NinadKamat) advises him to forget Celina in order to save his marriage but he ignores his advice. Urvil tails Ambar continuously.
Being fed up, she asks him to leave her alone and forget whatever happened between them as 'one-night stand' but he refuses to do so and Ambar haunts him so much that he reaches their home and embarrasses Ambar. He misbehaves with Simran, uttering Celina's name. She picks up a fight with him and on the pretext of dropping him to his office, she races their car in the busy street asking Urvil to confess as to who is Celina and about their affair. He is terrified due to the rashly driven speeding car and admits to Simran about the illegitimate affair with Celina. She drops him on the road-side and tells him that it's all over between them. He returns home and begs her to pardon him for his folly but Simran is firm in refusing.
Ultimately, Ambar calls Urvil to a spot on the highway to inform him that he should forget whatever happened between them and leave her alone. Urvil blames her for his marriage turmoil and that he was himself responsible. When Urvil threatens her that he would reveal the secret to Adhiraj, she informs him that she would do so herself irrespective of the consequence. She leaves him alone brooding about his future. The film ends with Urvil quitting his job and moving ahead in life in search of a new beginning.