THE BUCKINGHAM MURDERS is the story of a cop trying to solve a difficult case. Jaspreet Bhamra (Kareena Kapoor Khan), a cop, is grieving after her son was killed by a delinquent. She shifts from her town in the UK to High Wycombe in Buckinghamshire. She knows that she’ll be… demoted from DI (Detective Inspector) to DS (Detective Sergeant). Yet, she takes it up as a means to deal with her trauma. Her senior at High Wycombe is DI Hardy aka Hardik Patel (Ash Tandon). On the day she joins, Jaspreet is asked to accompany Hardy on the case of a missing child, Ishpreet Kohli (Sartaaj Kakkar). His father, Daljeet Kohli (Ranveer Brar) and mother Preeti Kohli (Prabhleen Sandhu) inform the cops that their child was adopted. As per the CCTV footage, the child was last seen in the sprawling Totteridge Rye Park. The cops decide to extensively search the site. They finally find him dead in a car. The car belongs to Akram Khan (Farhan Baqi). He informs the cops that he had lent the car to his nephew, Saqib (Kapil Redekar). Saqib is arrested and refuses to cooperate with the police. Meanwhile, Daljeet and Saqib’s father Saleem have a past rivalry, and both confront each other. The matter gets worse, resulting in communal tensions. Jaspreet, meanwhile, feels that the case is not as simple as it’s made out to be. Hardy, however, is not interested in listening to her and admonishes her at every given opportunity. What happens next forms the rest of the film.