In 2006,
scholarship student Oliver Quick struggles to fit in at the
University of Oxford because of his inexperience with
upper-class manners. He befriends Felix Catton, an affluent and popular student who is sympathetic to Oliver's stories of his parents'
substance abuse and
mental health issues. When Oliver becomes distraught over his father's sudden death, Felix comforts him and invites him to spend the summer at his family's
country house, Saltburn. At Saltburn, Oliver meets Felix's parents Sir James and Lady Elspeth Catton, his sister Venetia, and Elspeth's friend Pamela, and he reunites with Felix's American cousin Farleigh, with whom Oliver has had a tense relationship as Oxford classmates. Oliver quickly wins over Felix's family except for Farleigh, and his obsession with Felix grows. One night, after watching Felix
masturbate in a bathtub, he lustfully drinks the
semen-laced bathwater. Later, having seen Venetia waiting outside his bedroom window, he performs
oral sex on her while she is on her
period. Farleigh witnesses this and informs Felix, but Oliver claims nothing happened when Felix confronts him. At night, Oliver sneaks into Farleigh's room while he's sleeping and initiates sexual advances on Farleigh, threatening him in the process. The next morning, James evicts Farleigh after receiving a report from
Sotheby's about his intention to sell some of James's valuable
Huguenot ceramics. As the summer ends, Elspeth and James plan a party for Oliver's birthday. Felix surprises Oliver with a trip to see his
estranged mother, causing Oliver to panic. Upon arriving at the family's house in
Prescot, Felix realises Oliver had lied to him about his upbringing. His father is still alive, neither of his parents had substance abuse or mental health troubles, and they live in a respectable
middle class suburb. Horrified and hurt by Oliver's deception, Felix decides not to tell anyone to spare his own family the humiliation but orders Oliver to leave Saltburn after the party. During the extravagant celebrations, Oliver seeks to make amends with Felix by expressing his adoration for him, but Felix rejects him and suggests he seek help. The next morning, Felix is found dead in Saltburn's
hedge maze. Oliver implies Felix's death was connected to Farleigh supplying drugs during the party, and James withdraws financial support from Farleigh and bans him from ever returning. Oliver mourns Felix and visits his grave alone, where he lies naked on the grave and humps the soil. After Felix's funeral, Elspeth insists Oliver extend his stay at Saltburn. Venetia, increasingly distraught and disturbed, accuses Oliver of destroying her family. He attempts to seduce her, but she eventually rebuffs him. The next day, Venetia is found dead, having slit her wrists in the bathtub. Despondent over Oliver's continuing presence at Saltburn and Elspeth's closeness to him, James bribes him to leave, which Oliver accepts. In 2022, Oliver reads about James's death in a newspaper. He subsequently has what seems to be a chance encounter with Elspeth at a café. She is delighted to see him again, insisting he return with her to Saltburn. After spending several months with Oliver, Elspeth becomes terminally ill. On her deathbed, Oliver confides to Elspeth that he is responsible for all of the tragic and horrifying events at Saltburn. He orchestrated his initial meeting with Felix at Oxford and poisoned Felix's drink in the maze, resulting in his death. He seduced Farleigh in order to use his e-mail to offer Sotheby's the ceramics so James would oust him. He also placed razor blades beside Venetia while she was bathing, encouraging her suicide. He even engineered his encounter with Elspeth at the café, after which she
bequeathed all her assets, including Saltburn, to him. He then removes her life support, killing her. Having now assumed ownership of Saltburn and the Catton family fortune, Oliver happily dances naked around the mansion. ==Cast==