Writer: Abbas Dalal
Cast: Tiger Shroff as Captain Ranveer “Ronnie” Pratap Singh: Neha’s former boyfriend, an army officer & Rhea’s father
Disha Patani as Neha Salgaonkar (née Rawat): Ronnie’s former girlfriend, Rhea’s mother and Shekhar’s wife
Manoj Bajpayee as DIG Ajay Shergill
Randeep Hooda as ACP Loha “LSD” Singh Dhull
Darshan Kumar as Shekhar Salgaonkar: Neha’s husband and Rhea’s stepfather
Deepak Dobriyal as Usman Langda
Prateik Babbar as Sunny Salgaonkar: Shekhar’s brother and one of Rhea’s kidnappers
Arravya Sharma as Rhea Pratap Singh: Neha and Ronnie’s daughter, Shekhar’s stepdaughter
Shaurya Bhardwaj as Colonel Ranjit Singh Walia: Ronnie’s mentor and boss
Vipin Sharma as Mahendra Kumar Rawat, Neha’s father
Sunit Morarjee as Inspector Sharad Kute
Pushy Anand as Rhea’s school principal
Ashwin Kaushal as the bungalow owner
Jacqueline Fernandez as Mohini (in song “Ek Do Teen”)[
A married woman named Neha is attacked. On regaining consciousness, she looks for her missing daughter Rhea. Helpless, she seeks help from Ronnie, her former college boyfriend and an Indian Army Para SF soldier.
Ronnie remembers their past: the two met in college and fell in love, and Ronnie promised he would always help her. They got ready to marry, but when her father got a heart attack, Neha had to fulfill his last wish to marry Shekhar, leaving Ronnie heartbroken.
In the present, Ronnie meets with a frightened Neha, who reveals that she got assaulted outside Rhea’s school gates and Rhea was taken by kidnappers. She says that Shekhar has been depressed since the kidnapping. Remembering his promise, Ronnie accepts the task of helping to find Rhea. The two visit the police station, where Ronnie beats up the inspector for being inappropriate toward Neha. He gets himself arrested but is released on request of DIG Ajay Shergill.
Ronnie begins to look for clues but everybody he comes across claims that Shekhar and Neha have no daughter. He is also unable to find Rhea in any CCTV footage. An anonymous man is shown with photos of Rhea, revealing that Neha is telling the truth. Shekhar tells Ronnie that Neha had a miscarriage, was diagnosed with PTSD, and began thinking that she had a daughter who doesn’t exist. Finding absolutely no evidence of Rhea ever existing, Ronnie questions Neha’s state of mind, saying that there is no proof, everyone is against her, and he doesn’t believe her. Heartbroken, Neha asks him to leave. As he does, he notices the marks of Rhea’s height growth on the wall. He doubts himself but it’s too late as Neha commits suicide, feeling helpless because no one believes her.
The police reach the site of the suicide and ACP Loha Singh Dhull suspects Shekhar. Ronnie learns from his friend Usman that Rhea was seen with Neha’s alcoholic brother-in-law, Sunny. He finds Sunny but Sunny is taken into custody by police. Sunny attacks Ajay but is shot in the fight and dies. Usman is attacked by thugs and dies from his injuries. Ronnie takes the phone of one of the thugs, revealing texts about their targets, followed by a photo of himself taken in Ajay’s home. He realises that Ajay is the mastermind. After killing an army of goons alone in a forest around Ajay’s home in Goa, Ronnie confronts him. Ajay reveals he was paid by Shekhar for Rhea’s kidnapping, as Shekhar hated Rhea. Everyone involved with the family was either killed or bribed into playing along to paint Neha as insane.
Ronnie defeats Ajay in a fight. Loha arrives and fatally shoots Ajay. Ronnie gets a glimpse of Rhea before fainting. After regaining consciousness, Loha reveals that Rhea is Ronnie’s biological daughter. Ronnie remembers that when Neha met him to end their relationship four years ago, the two had ended up making love. He sees Neha’s spirit telling him that Rhea is the most beautiful thing about their relationship.
Loha explains that Shekhar confessed that he kidnapped Rhea after his doctor declared him sterile, revealing that Rhea wasn’t his child. The film ends with Ronnie taking in Rhea.