| Director | Abhinay Deo |
|---|---|
| Genre | black comedy film, drama film |
| Runtime | 138 min |
| Country | India |
| Budget | ₹18 crore |
| Box office | ₹28.8 crore |
Dev Kaushal (Irrfan Khan) is a toilet paper sales executive who is leading a dispirited life professionally and personally. One day, to surprise his wife Reena Kaushal (Kirti Kulhari) he arrives early from the office. Instead, he finds his wife in bed with another man named Ranjit "Tommy" Arora (Arunoday Singh). Without doing anything, Dev leaves and decides to follow Ranjit to find out more about him.
Ranjit is married to Dolly Verma (Divya Dutta), who has a rich dad. Dev blackmails Ranjit after managing to collect his personal information. Ranjit arranges the money from Dolly. When Dolly's father asks Ranjit to return the cash, he blackmails Reena. Dev reveals his plans to his colleague Anand (Pradhuman Singh Mall). Reena asks Dev for money, saying it is for her dad's treatment. Dev gives her the money by asking for more from Ranjit. Reena keeps the money in a dust bin and Dev collects it, again.
As this is occurring, Dev's boss (Omi Vaidya) remarks that he is losing market share to bidet manufacturers. He is planning to sabotage the city water supply in order to show its population why they need toilet paper. He asks Dev to convince the Municipal corporation (India) to shut off the water for 12 hours, but is initially unsuccessful.
Anand, who has a crush on Prabha Ghatpandey (Anuja Sathe), a colleague, takes her on a date and reveals Dev's plans. The very next day Prabha blackmails Dev for money. Dev confronts Anand and then asks Ranjit for money. Ranjit in turn asks Reena for money and Reena asks Dev for the money. From the cash received earlier Dev sends the amount to Reena's account, while Reena puts the money in a dustbin. Ranjit collects it and throws it in a dustbin which Dev collects and gives to Prabha. Ranjit listens to Reena's advice and hires a detective, Chawla (Gajraj Rao) to catch the blackmailer. Prabha blackmails Dev again for more money but he visits her apartment to confront her and they argue. Prabha slips on her own during the argument and dies. Suddenly Prabha's parents arrive at the apartment. Dev manages to escape by wearing a mask made out of a Paper bag.
The next morning, police arrive and interrogate everyone in the office. Anand threatens Dev that he will reveal everything to the police because he believes that Dev has killed Prabha. Upon interrogation, Dev reveals to the police that Anand liked Prabha. Dev convinces Anand to hide the truth from the police. Using Anand's car Dev purchases the same bag he used last night and hides it in Anand's car, following which the police arrest Anand. Anand panics and reveals everything about Dev to the police but they don't believe him entirely. Meanwhile, Chawla calls Dev telling him he knows about his ruse.
The police then interrogate Dev. Dolly follows Ranjit and sees him together with Reena in the cinema hall. Anand comes out of police custody and fights with Dev, but Dev calms him down with the greed of money. Dev meets Chawla who starts blackmailing him for money. When Ranjit comes back home, Dolly tries to kill him, and as they fight Ranjit shoots her dead. Aghast, he hides her body. Dev blackmails Ranjit (to pay Chawla), warning he will reveal the affair to Dolly's father. Ranjit asks Reena for more money, and Reena asks Dev for money, but this time Dev refuses.
Dev tries to find out if Reena is lying to him about her father's treatment. Dev follows her, watching her sell her jewelry, and drops the cash in the dustbin at a Mall. Dev tries to take it out, but Ranjit reaches there first and takes the money. Dev takes pictures of Ranjit taking the money. Ranjit hides the money in the dustbin and waits there to catch the blackmailer. Dev bribes a security guard to take out that money. Ranjit tries to catch the guard, as Dev collects the money and then later gives it to Chawla. Dev then asks Chawla to call Ranjit and tell him that the blackmailer is Anand. Furious, Ranjit kills Anand. Dev sends the pictures of Ranjit taking money to Reena. Meanwhile, Dolly's parents call the police as they find out that Ranjit has murdered their daughter.
Back at home, heartbroken Reena deletes Ranjit's contact from her phone and messages Dev asking when he will come home. Dev deletes Reena's contact and walks out of the office.
A mid-credits scene reveals that the plan to shut off the city's water supply succeeded. This resulted in skyrocketing bottled water sales - exactly the opposite of what his boss wanted. A song plays showing Dev and Reena's wedding 7 years prior.