Sleep (2024) Timeline Explained – Every Event in Order

While sleepwalking, Hyun-su acts on violent impulses he cannot control or remember. He places the Pomeranian in the freezer, causing its death. This horrifying act is the moment when Soo-jin realizes her husband's sleep disorder has escalated beyond strange behavior into actual danger, marking a turning point where she can no longer dismiss the incidents as harmless.

Foreshadowing: Earlier, Hyun-su scratches his own face until it bleeds and craves raw meat, showing his sleep state harbors violent tendencies.

• hyun-su
• pomeranian
• freezer
• sleepwalking
• violence
• pet death

After the dog incident, Soo-jin's fear grows when she gives birth and becomes terrified Hyun-su will harm the baby during sleep. The shaman Madame Haegoong tells her Hyun-su is possessed, and she connects this to Park Chun-gi, the deceased father of her downstairs neighbor. Her mother's insistence on supernatural explanations also influences her thinking, creating a perfect storm of desperation and belief.

Foreshadowing: Soo-jin's mother has been pushing for divine intervention from the beginning, planting the idea of supernatural causation.

• soo-jin
• possession
• ghost
• shaman
• park chun-gi
• paranoia

This phrase is Hyun-su's only verbal clue during his sleep episodes. It suggests he may sense an external presence or that something is controlling him from within. The exact meaning remains ambiguous, it could be literal (a ghost possessing him), metaphorical (his altered state), or meaningless (random sleep-talk). The film uses this phrase to plant the seed of possession before the supernatural explanation fully emerges.

Foreshadowing: This is the first unsettling sign that something unusual is happening during Hyun-su's sleep, occurring before the violence escalates.

• someone's inside
• sleep-talking
• possession
• hyun-su

Desperate and paranoid, Soo-jin believes the ghost of Park Chun-gi is possessing her husband and must be expelled. She abducts Min-jeong (Park Chun-gi's daughter) to force the ghost out, threatening to kill her with a power drill if the spirit does not leave Hyun-su's body. This extreme act reveals how far her fear has pushed her, she believes sacrificing Min-jeong will save her family.

Foreshadowing: The shaman identified Park Chun-gi as the possessing ghost, linking Min-jeong to the supernatural threat.

• soo-jin
• min-jeong
• abduction
• power drill
• threat
• shaman

Park Chun-gi is the recently deceased father of Min-jeong, Soo-jin's downstairs neighbor. Madame Haegoong identifies Park Chun-gi's ghost as the entity possessing Hyun-su. Soo-jin fixates on this connection, believing the ghost is using Hyun-su's body to remain in the living world. The film never confirms this, the connection could be coincidence or evidence of genuine supernatural activity.

Foreshadowing: Min-jeong is introduced as their downstairs neighbor before her father's death becomes relevant to the haunting.

• park chun-gi
• min-jeong
• ghost
• father
• neighbor

The doctor diagnoses Hyun-su with a sleep disorder but provides no specific cause, he prescribes medication and advises lifestyle changes like avoiding alcohol. The film deliberately leaves the disorder's origin unexplained, maintaining the central ambiguity between medical and supernatural explanations. Viewers never learn whether the condition is physiological, psychological, or genuinely paranormal.

Foreshadowing: The doctor offers a rational explanation early on, but subsequent events call its completeness into question.

• hyun-su
• sleep disorder
• doctor
• diagnosis
• medication
• cause

Soo-jin confronts Hyun-su while he is awake, laying out her evidence for possession and demanding the ghost leave his body. She threatens to kill Min-jeong if it does not depart. Hyun-su, exhausted and unnerved, reluctantly goes along with her demands. They lie together on the floor, emotionally spent, with the question of possession never resolved, leaving their relationship and his condition forever ambiguous.

Foreshadowing: This confrontation follows directly from Soo-jin's kidnapping of Min-jeong and represents the climax of her paranoid investigation.

• confrontation
• soo-jin
• hyun-su
• floor
• exhaustion
• resolution

The film deliberately refuses to confirm either interpretation. The medical explanation (sleep disorder, parasomnia) accounts for the violent behaviors. The supernatural explanation (ghost possession) accounts for the same behaviors through paranormal means. The ending leaves viewers to decide which framework they find more convincing, making ambiguity the film's defining characteristic.

Foreshadowing: Throughout the film, both explanations are presented with equal weight, the doctor and the shaman offer competing theories.

• possession
• medical
• supernatural
• ambiguity
• explanation
• ending

During sleep episodes, Hyun-su exhibits disturbing cravings and consumes raw meat directly from the refrigerator. This bizarre behavior reflects how his unconscious state drives primitive impulses his waking self would never act on. It adds to the mounting horror of his condition and early on signals that his sleep disorder involves more than just talking, he is acting on base urges.

Foreshadowing: This occurs early in the timeline alongside his sleep-talking and self-scratching, establishing a pattern of violent sleep behavior.

• hyun-su
• raw meat
• sleep eating
• cravings
• behavior

After giving birth, Soo-jin's fear transforms from general concern to specific terror for her newborn. She witnessed Hyun-su kill the family dog while sleepwalking, and now a helpless infant lives in the same home. Her paranoia becomes maternal protection, she cannot risk leaving the baby alone with a husband whose unconscious mind harbors violent impulses he cannot control.

Foreshadowing: The dog's death in the freezer directly foreshadows the danger to the baby, the same uncontrollable violence could target the infant.

• baby
• newborn
• fear
• danger
• soo-jin
• protection
• hyun-su