Plot
Saanchi and Yathaarth are a married couple. However, their marriage is on the brink of collapse. Saanchi keeps pressuring Yathaarth to speak with his divorce lawyer, and plans to move to the United Kingdom. One day, Yathaarth sees the news, at work that Haq Riyaz Gul, a terrorist, has entered his apartment when Saanchi was alone. Baffled, he rushes to the apartment complex, only to find that the Mumbai Police is already present. ACP Harishchandra Malik tries to negotiate with Gul, but in vain. Meanwhile, the media, who are present outside the apartment complex, receive news about the hostage situation and try to sensationalize it. Yathaarth informs Malik that Saanchi was recently diagnosed with delusional disorder, and that as time goes on, she can become more dangerous than Gul if she does not take her prescribed pills.
Meanwhile, in the apartment, Saanchi calmly tells Gul that Yaatharth is trying to give her the wrong medication to make her lose her sanity. She also tells him that once Yaatharth succeeds with his plan, he can keep her wealth as a caretaker, whilst also continuing his relationship with her psychiatrist, Vidya, whom she caught multiple times when they were being sketchy around her. Furious and annoyed about the situation, Gul tells Saanchi to stay silent. When Malik contacts Gul, Yaatharth pleads with Gul, to give Saanchi her medication. Otherwise, she will soon have a relapse. Overhearing the conversation between Yaatharth and Gul, Saanchi asks Gul to not administer it, while flirting with him.
Gul vulnerably tells Sanchi that he did not know about the bomb he delivered to the boy's hostel, which eventually killed 13 people. He states that he was betrayed by his uncle from Kashmir in delivering the bomb instead of an actual courier, which killed 13 students. Since all the evidence pointed toward him, he was convicted. Later, Gul threatens Malik, of killing Saanchi, if his demands are not met. When Yaatharth insists on going to his apartment, alone, with Malik and the police, they both get into a heated argument regarding the next course of action.
In the apartment, as Saanchi seduces Gul, they plan to make Saanchi a fake hostage, to escape from the police' clutches. As they act on their plan, Saanchi alerts the police on his gun's magazine being empty, betraying Gul's trust, in front of the police. However, Gul manages to bring Saanchi back to the apartment. Saanchi soon starts behaving differently, asking about Gul's identity and how he managed to get into the apartment. Vexed, Gul ties Saanchi to a chair in the living room. It is revealed that Gul actually gave Saanchi her pills through the chai she made earlier.
After some time, Saanchi tries to initiate sex with Gul, but he gets second thoughts, while being intimate with her. Saanchi then proceeds to tell Gul that all men are the same: Yaatharth, Gul, and 'him'. Gul has a change of heart again, and disposes of her pills, stating that he plans to run away with her. Meanwhile, Malik and Yaatharth decide on Yaatharth getting the ransom money of INR 50 lakhs, so that they can arrest Gul and defuse the situation quickly. When Yaatharth goes up to his apartment, with the ransom money, multiple shots are heard. Malik and the police rush to the apartment, only to find Saanchi dead, in the arms of Yaatharth, with the shots fired at her. Gul proclaims to the police that Yaatharth shot and killed her, instead of him.
At the court, Yaatharth states that once he entered the apartment, Saanchi immediately asked for Yaatharth's help. Gul fired multiple shots at her, killing her, when she betrayed him, again. As per Gul's testimony, when Yaatharth entered the apartment, both Saanchi and him verbally abused each other. Yaatharth then tried to take the gun from Gul, but they both got into a tussle. However, Yaatharth managed to fire multiple shots at Saanchi, even when the gun was in Gul's hands. Malik states to the court that when Gul was in his custody, he came to know that he was actually delusional and hands in the medical and psychological reports, as evidence, proving the same. The court maintains the earlier death sentence of Gul's, with Saanchi being added to his list of victims. However, since he has been diagnosed with a mental illness, the death sentence can only be carried out once he has been cured of it.
It is later revealed that Yaatharth did give the wrong medication to Saanchi, with the help of Vidya, with whom he was having an affair. The third person Saanchi referred to Gul, was actually Malik, with whom she was planning to flee, to the United Kingdom, from Yaatharth. But, when Malik insisted on staying in India, as he has a family, Saanchi blackmailed Malik, of falsely raping her. It was Malik who along with Gul planned his escape during a jail transfer in order to kill Sanchi in her apartment. In return, Malik promised to save him from a death sentence. Gul, having killed nobody, later loses his sanity and is sent to a mental institution for treatment, where he imagines Saanchi. This means, Yatharth deceived Sanchi and Gul was deceived by both Sanchi and Malik. Thus, each character gives ‘Dhokha’ to each other.
