One day, to surprise his wife Reena Kaushal (Kirti Kulhari) he arrives early from office but instead finds his wife in bed with another man named Ranjit "Tommy" Arora (Arunoday Singh). He imagines different scenarios, like killing the lover, killing the wife, but leaves and decides to blackmail him.
Ranjit is married to Dolly Verma (Divya Dutta), who has an influential dad Ranjit is scared of. Dev blackmails Ranjit for a sum of 1 lakh. Ranjit arranges the money from Dolly. When Dolly's father asks Ranjit to return the money, he blackmails Reena for 120,000.
Anand, who has a crush on Prabha Ghatpandey (Anuja Sathe), a colleague, takes her on a date and unintentionally reveals Dev's plans. Next day Prabha blackmails Dev. Dev confronts Anand, 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 transacts 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 gets fed up and hires a detective, Chawla (Gajraj Rao). Prabha blackmails Dev again. Dev meets Prabha and they share an argument in her apartment. Prabha slips during the argument and falls, killing her. Suddenly Prabha's parents arrive. Dev manages to escape by wearing mask made out of a Paper bag.
Next morning, police arrive and interrogates everyone in the office. Anand knowing that Dev met Prabha last night, blackmails Dev. On interrogation Dev reveals 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. Meanwhile, Chawla calls Dev telling him he knows about his ruse.
The police then interrogates Dev about his blackmail activities. Dolly follows Ranjit and sees him together with Reena in cinema hall. Anand comes out of police custody and fights with Dev, but Dev calms him down, claiming he has a master plan to gain lakhs of money. Dev meets Chawla who starts blackmailing him too to remain silent. Back at home Dolly tries to kill Ranjit, and as they fight Ranjit shoots her dead. Aghast, he hides her body. Dev blaikmails Ranjit (to pay Chawla), warning he would tell Dolly's dad. Ranjit asks Reena for more money, and Reena then asks Dev for money claiming that its for her father's surgery, which he refuses saying he doesn't have.
Dev calls Reena's parents to find out she has been lying. So Dev follows her, watching her sell her own jewelry and then dropping the cash in the dustbin at a Mall. Dev tries to take it out, but Ranjit comes over there first and takes the money. Dev takes pictures of Ranjit taking the money. Ranjit hides the money in the dustbin and waits there himself 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. He 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 find out Ranjit murdered their daughter and call the police.