The narrator then recalls his early experiences in London's literary circles. He meets Mrs. Amy Strickland through the writer Rose Waterford and becomes a regular visitor to her home. Mrs. Strickland enjoys literature and likes entertaining writers, although her husband has little interest in artistic or intellectual matters. The narrator eventually meets Charles Strickland and initially considers him dull, conventional, and unremarkable.

The narrator finds Strickland living in a cheap hotel and discovers that he has no intention of returning to England. During their conversation, Strickland explains that he has not left his wife for another woman but because he wants to become a painter. He admits that he has no interest in his former comfortable life and is prepared to sacrifice his family, reputation, and financial security for his artistic ambition.

The narrator is shocked by Strickland's selfishness and tries to make him understand the suffering he has caused. However, Strickland remains completely indifferent to his wife's feelings and his children's future. When the narrator returns to London, he informs Mrs. Strickland that her husband will not come back. She is particularly humiliated by the discovery that he has abandoned her for painting rather than for another woman.

The narrator discovers that Strickland is living in poverty and devoting nearly all his time to painting. Although Strickland's work is not yet appreciated, Stroeve believes that he possesses extraordinary artistic ability. When Strickland becomes seriously ill, Stroeve finds him in a miserable condition and insists on bringing him into his own home. Blanche strongly objects because she dislikes Strickland and distrusts his character, but eventually agrees to care for him.

Stroeve is devastated by Blanche's betrayal, but he still loves her and hopes that the relationship will not last. He tries to persuade her to return to him, but Blanche refuses. Strickland shows little concern for the emotional suffering of either Stroeve or Blanche. His attention remains focused on his painting, and he appears unable to understand the depth of the feelings he has created.

After her death, Stroeve discovers a nude portrait of Blanche painted by Strickland. Although he initially feels an overwhelming desire to destroy it, he recognises the extraordinary artistic quality of the painting. He decides to preserve it and even offers Strickland the opportunity to accompany him to Holland. Strickland refuses.

Strickland invites the narrator to visit his studio and shows him a collection of paintings. The narrator is initially confused by the unusual and sometimes disturbing appearance of the works, but he recognises that they possess remarkable power and originality. Strickland's paintings reveal an artistic vision that is difficult to understand through conventional standards of beauty.

Strickland eventually leaves Paris and travels to Marseilles. The narrator does not see him again for many years and later learns that he has travelled to Tahiti.

Strickland initially experiences poverty and hardship in Marseilles. He eventually finds opportunities to travel by working aboard ships, which eventually bring him to Tahiti. There, he encounters a very different society from the European world he has left behind. He meets people who are willing to accept his unusual personality and unconventional lifestyle.

The narrator learns that Strickland is introduced to a hotel owner named Captain Nichols, who becomes connected with his life in Tahiti. Through these accounts, the narrator begins to understand how Strickland found the freedom and environment he needed to continue painting.

The narrator also reflects on Strickland's relationship with Blanche and argues that his pursuit of artistic freedom was far more important to him than his involvement with women. He describes Strickland as a man who was willing to sacrifice himself and others in order to fulfil his artistic vision.

The narrative then returns to Captain Nichols's account of Strickland's experiences in Marseilles. After becoming involved in a violent confrontation with a man named Tough Bill, Strickland faces the possibility of revenge. Nichols helps him find a way out by arranging work aboard a ship travelling towards Australia. Strickland leaves Marseilles and continues his journey towards the Pacific.

One of the people he interviews is Monsieur Cohen, a trader who once employed Strickland on his plantation. Cohen remembers that Strickland was more interested in painting than in earning money. He eventually gave Cohen a painting of the plantation in return for financial assistance. Although Cohen initially considered the painting worthless, he later discovered that it was extremely valuable.

The narrator also meets Tiaré Johnson, a hospitable hotel owner who remembers Strickland as a poor but determined artist. Through her account, the narrator learns that Strickland immediately felt at home when he first arrived in Tahiti. He was attracted to the island's natural beauty and the freedom it offered him.

Strickland eventually meets Captain Brunot, who helps him establish himself in Tahiti. He is introduced to Ata, a young Tahitian woman who becomes his companion and later his wife. Ata owns property in the countryside, where Strickland can live and paint without interference. Their relationship provides him with the peaceful surroundings and independence he has always wanted.

Eventually, Strickland develops symptoms of leprosy. When Dr. Coutras examines him, he confirms the diagnosis and explains the seriousness of his condition. Strickland decides that he must isolate himself to prevent the disease from spreading. He tells Ata that she should leave him and protect herself and their children.

Ata refuses to abandon her husband, insisting that she will remain with him despite the danger and difficulties. Strickland is deeply affected by her loyalty, although he struggles to understand why she loves him so devotedly. For perhaps the first time, the narrator's account reveals a more vulnerable side of Strickland.

When the doctor arrives, he discovers that Strickland has died. He also finds that Strickland has covered the walls of his house with an extraordinary painting depicting a vision of paradise. The painting is a masterpiece and represents the artistic achievement towards which Strickland has been striving throughout his life. The doctor is astonished to discover that Strickland had been blind for some time while completing it.

Before his death, Strickland had instructed Ata to burn the house after he was gone. Ata follows his wishes, and the magnificent painting is destroyed in the fire. She then leaves with her surviving child to live with relatives.

The narrator eventually returns to London and visits Mrs. Strickland, who is now interested in her former husband's growing artistic reputation. She is surrounded by people who admire Strickland's paintings and discuss his achievements. His children from his first marriage are also present. When the narrator tells them about Strickland's death, his son responds with a remark suggesting that his father received the punishment he deserved. The narrator silently judges the family's inability to understand the extraordinary artistic vision that had consumed Strickland's life.