In the stately London home of his aunt, Lady Brandon, the well-known artist Basil Hallward meets Dorian Gray. Dorian is a cultured, wealthy, and impossibly beautiful young man who immediately captures Basil’s artistic imagination. Dorian sits for several portraits, and Basil often depicts him as an ancient Greek hero or a mythological figure. When the novel opens, the artist is completing his first portrait of Dorian as he truly is, but, as he admits to his friend Lord Henry Wotton, the painting disappoints him because it reveals too much of his feeling for his subject. Lord Henry, a famous wit who enjoys scandalizing his friends by celebrating youth, beauty, and the selfish pursuit of pleasure, disagrees, claiming that the portrait is Basil’s masterpiece. Dorian arrives at the studio, and Basil reluctantly introduces him to Lord Henry, who he fears will have a damaging influence on the impressionable, young Dorian.

Basil’s fears are well founded; before the end of their first conversation, Lord Henry upsets Dorian with a speech about the transient nature of beauty and youth. Worried that these, his most impressive characteristics, are fading day by day, Dorian curses his portrait, which he believes will one day remind him of the beauty he will have lost. In a fit of distress, he pledges his soul if only the painting could bear the burden of age and infamy, allowing him to stay forever young. After Dorian’s outbursts, Lord Henry reaffirms his desire to own the portrait; however, Basil insists the portrait belongs to Dorian.

Over the next few weeks, Lord Henry’s influence over Dorian grows stronger. The youth becomes a disciple of the “new Hedonism” and proposes to live a life dedicated to the pursuit of pleasure. He falls in love with Sibyl Vane, a young actress who performs in a theater in London’s slums. He adores her acting; she, in turn, refers to him as “Prince Charming” and refuses to heed the warnings of her brother, James Vane, that Dorian is no good for her. Overcome by her emotions for Dorian, Sibyl decides that she can no longer act, wondering how she can pretend to love on the stage now that she has experienced the real thing. Dorian, who loves Sibyl because of her ability to act, cruelly breaks his engagement with her. After doing so, he returns home to notice that his face in Basil’s portrait of him has changed: it now sneers. Frightened that his wish for his likeness in the painting to bear the ill effects of his behavior has come true and that his sins will be recorded on the canvas, he resolves to make amends with Sibyl the next day. The following afternoon, however, Lord Henry brings news that Sibyl has killed herself. At Lord Henry’s urging, Dorian decides to consider her death a sort of artistic triumph—she personified tragedy—and to put the matter behind him. Meanwhile, Dorian hides his portrait in a remote upper room of his house, where no one other than he can watch its transformation.

Lord Henry gives Dorian a book that describes the wicked exploits of a nineteenth-century Frenchman; it becomes Dorian’s bible as he sinks ever deeper into a life of sin and corruption. He lives a life devoted to garnering new experiences and sensations with no regard for conventional standards of morality or the consequences of his actions. Eighteen years pass. Dorian’s reputation suffers in circles of polite London society, where rumors spread regarding his scandalous exploits. His peers nevertheless continue to accept him because he remains young and beautiful. The figure in the painting, however, grows increasingly wizened and hideous. On a dark, foggy night, Basil Hallward arrives at Dorian’s home to confront him about the rumors that plague his reputation. The two argue, and Dorian eventually offers Basil a look at his (Dorian’s) soul. He shows Basil the now-hideous portrait, and Hallward, horrified, begs him to repent. Dorian claims it is too late for penance and kills Basil in a fit of rage.

In order to dispose of the body, Dorian employs the help of an estranged friend, a doctor, whom he blackmails. The night after the murder, Dorian makes his way to an opium den, where he encounters James Vane, who attempts to avenge Sibyl’s death. Dorian escapes to his country estate. While entertaining guests, he notices James Vane peering in through a window, and he becomes wracked by fear and guilt. When a hunting party accidentally shoots and kills Vane, Dorian feels safe again. He resolves to amend his life but cannot muster the courage to confess his crimes, and the painting now reveals his supposed desire to repent for what it is—hypocrisy. In a fury, Dorian picks up the knife he used to stab Basil Hallward and attempts to destroy the painting. There is a crash, and his servants enter to find the portrait, unharmed, showing Dorian Gray as a beautiful young man. On the floor lies the body of their master—an old man, horribly wrinkled and disfigured, with a knife plunged into his heart.