Sunil (Ranvir Shorey) is preparing for a Diwali party at his house. Some hours before the party he is visited by a stranger Raghav (Chandrachoor Rai), who introduced himself as husband of Sunil's colleague Chaya (Palomi Ghosh). Sunil is having an affair with Chaya and Raghav knows about that. Sunil and Raghav had an argument and Raghav shoots himself by a gun. He dies on the spot. Before Sunil could do much to hide the body, his wife Malti (Mansi Multani) came back from the office.
Sunil tells her about the incident and while they are discussing what they should do, guests of the party start arriving. Having no way out, they hide the body and welcome the friends. Among the set of friends, there is Francoise Marie (Kalki Koechlin), who is a mind reader, a single mom Paro (Nupur Asthana) and Joshi (Sagar Deshmukh, who is cooking for the party.
There are unannounced guests wearing pollution mask who are Malti's uncle (Manoj Pahwa) and her aunt (Yamini Das). Sunil's friend Rahul (Rajat Kapoor), Rahul's wife Sheetal (Tara Sharma), Yogesh (Cyrus), his wife Alka (Shruti Seth) and Sunil's office colleagues and Chaya also join the party and very soon the whole house is filled with people. What unfolds next is the hidden rivalry between friends, drunken brawls, game of cards and several twists and turns finally resulting in ruined friendships and soiled relationships