The story opens with Wanlop Rungkumjad as Wit, a young man who travels to a quiet village in Burma. One night, a beautiful woman slips into his bedroom, attempting a seductive encounter, but she narrowly escapes when the distant screams outside erupt into frightening noise. The next day, Wit asks Thip, Ni Han's loyal right-hand man, about the source of those screams, and Thip begins to unfold a tale that centers on Yupadee and Sangmong—Ni Han's former wife and his nephew.
Sangmong grows up under Ni Han’s care, a boy who becomes a thoughtful, educated, and traditional-minded man. Raised with a strong sense of duty, his days are filled with books and work for his uncle, leaving him little room for a bustling social life. Ni Han, by contrast, is a well-known womaniser who pushes Sangmong to shed his reserve and experience the world more fully. In a bid to “make a man” of Sangmong, Ni Han has Thip take him to a brothel to sample carnal pleasures. Although the offered companion is striking, Sangmong declines and eventually withdraws, explaining that he wishes to wait until marriage. Ni Han respects this decision and promises to find him a proper wife to settle down with.
The plot shifts to Bangkok, where Ni Han, while attending an international sport club, meets a widow named Yupadee and is drawn to her modern outlook. He marries her, and when the couple returns home to introduce Yupadee to the village, she immediately forms a connection with Sangmong. Ni Han encourages their budding friendship, hoping Yupadee will help Sangmong emerge from his shell and become more socially engaged. Yupadee’s signals toward Sangmong are mixed—she can be warm and affectionate one moment, cool the next—yet she gradually reveals enough of her past to spark Sangmong’s growing affection for her. Her concern for his health deepens the bond, especially after she nurses him back to health from a fever.
Ni Han leaves on a business trip and takes Yupadee with him, but she fakes a pregnancy to stay behind and be alone with Sangmong. In Ni Han’s absence, the two lovers consummate their affair, and their secret romance becomes known to many servants and to Thip, who observes quietly. When Ni Han returns, he initially refuses to believe the rumors, but the truth becomes undeniable as he secretly discovers them together in Sangmong’s bed, confessing their love for one another “until eternity.” The following day, Ni Han reveals that he knows the truth and binds Yupadee to Sangmong by chaining their wrists together, banishing them to a small cabin in the woods so they can remain together.
The lovers initially treat the punishment as a joke, but the arrangement soon corrodes their happiness. They beg Ni Han for forgiveness and for release, yet his response is a solitary, grim option: a gun. Refusing to kill himself or Yupadee, Sangmong tries to escape by ferry, attempting to cut the chain with an axe to break free. Yupadee stops him, questioning whether he would leave her if the chain failed. When he does not answer, she refuses to permit a break, and Ni Han’s men eventually arrest them and return them to the cabin.
In a desperate moment, Sangmong takes the gun and offers to shoot himself to free Yupadee, who insists she is pregnant. Yupadee seizes the gun and shoots herself instead, and Sangmong loses consciousness. He awakens to the horrifying sight of her rotting corpse, still shackled to her. A servant arrives and chops Yupadee’s hand to free Sangmong, who then descends into madness. Ni Han eventually takes Sangmong back into his orbit, and over the years the once-educated man roams the village in a state of torment, crying out in a voice of a wild madman.
Throughout the narrative, the young man from the opening repeatedly encounters three beautiful women in the night. Thip later discloses that these women are, in fact, Ni Han’s women. Frightened, the young man decides to leave, packing his belongings in haste. The next day, he seeks out Ni Han, who is surrounded by the three women and by chains hanging on a column. Ni Han greets him with a knowing remark that he reminds him of his nephew, a chilling hint that lingers in the air. Before the young man departs, he comes face-to-face with Sangmong again, who hands him a book as a quiet, haunting farewell, and the young man rides away on his horse.
