In another 1926 diary entry, Daisy and Jonquil search for the still-missing Katrina. They find the clearing from Daisy’s nightmare, but Jonquil, sensing the place is strange, refuses to enter. Daisy goes in alone and is relieved to find the stone slab empty and clean.

As they leave, they discover a recently dug hole containing a wooden box resembling a small coffin. Fearing that Katrina’s body is inside, Daisy opens it but finds that it’s filled with bottles of bootlegged alcohol. Ruth and Mrs. Minafer then arrive, and Ruth confesses that she allows a bootlegger to use the island as a transfer point for his goods in exchange for money to help maintain the property. Daisy’s theory that Katrina might have left with the bootlegger is disproven when Ruth states that the crate of alcohol was already there when the group first arrived. Daisy grows increasingly worried that Azra is responsible for Katrina’s disappearance.

Back in the present, the remaining cast members agree that leaving the island is their top priority. At the dock, they determine that swimming the two miles to the mainland is too dangerous. They try to signal a passing motorboat, but the boaters likely assume that their period costumes are part of the film and don’t stop. Ronan points out that a signal fire would be dismissed for the same reason.

The conversation reminds Marin of Pete, the boatman who brought her to New Avalon and whose grandfather, Mr. Ruggle, was connected to the original 1926 events. Recalling the diary, Marin realizes that Pete never mentioned his grandfather’s role in transporting bootlegged alcohol from the island. She retrieves the diary pages and proposes Pete as a suspect, suggesting that he might be covering up a crime his grandfather committed.

The group debates the theory, with Julianne arguing that a supernatural force, awakened by their séance, is the true cause of Susie’s disappearance. Ronan dismisses this, but Marin offers another idea: Someone is intentionally recreating the events of the script to sabotage the production. This leads them to consider Lindy, the actress Marin replaced. Ronan finds Lindy’s headshot, and Marin is stunned to recognize her as the woman she saw almost take her picture at the dock upon her arrival. She realizes that Lindy is in Vermont.

This interlude consists solely of the words “GO,” “AWAY,” and “DAISY,” each set apart on its own line.

That night, an anxious Marin makes a list of suspects: Pete, Molly, Azra, Ronan, and Lindy, whom she considers the most likely culprit. Earlier that evening, Violet admitted that she pushed Loretta to fire Lindy because she found Lindy’s fear of the island disrespectful to the rest of the cast and because she saw Lindy’s audition tape and felt that she had no talent and chemistry with the rest of the cast.

After Violet suggests that they all sleep in the main house for safety, Heather refuses, and only Julianne takes up the offer. Marin remains in her own cottage. She falls into an uneasy sleep and is startled awake by a familiar thumping sound. She sees the figure of her sister, Molly, standing outside her window. Terrified but certain the apparition is real, Marin whispers a phrase that a childhood therapist taught her, and the figure vanishes. Before she can investigate, she notices a shadow moving inside Susie’s empty cottage and, believing it’s Lindy, decides to confront her.

In a 1926 diary entry, Daisy awakes to find another menacing message scrawled in her diary: “GO AWAY DAISY” (202). Later, Ruth convinces the reluctant group to hold another séance to learn Katrina’s fate.

During the séance, the spirit they contact is Azra, who directly greets Daisy over several messages. The communication causes Daisy to fall into a trance for 13 minutes. When she awakens, the others tell her that Azra delivered a chilling prophecy: Daisy will see them again soon, and when she does, another member of their group will be gone.

Back in the present, Marin, armed with a plunger for protection, enters Susie’s cottage but finds Heather inside. Heather has found a flashlight and plans to signal for help using Morse code. After changing into modern clothes, Marin joins her at the shore. Heather begins flashing an “SOS” signal across the lake while Marin goes to the dock for a better view.

From the dock, Marin watches Heather’s blinking light. Suddenly, the signal stops, and the flashlight’s beam becomes steady. Marin rushes back to the spot and finds the flashlight on the ground, but Heather has vanished without a trace. After a frantic, fruitless search, Marin returns to the main green. There, she’s horrified to see Heather’s polka-dotted dress hanging in the high branches of the large oak tree, alongside Susie’s clothes.

In the next 1926 diary entry, Daisy confirms that Jonquil has disappeared and that her dress is now hanging in the oak tree, fulfilling Azra’s prophecy. She recounts a nightmare she had just before the discovery, in which she saw Azra slit Jonquil’s throat in the clearing. In the dream, Azra removed their hood to reveal their face, causing Daisy to wake up screaming a single word she couldn’t initially remember. As she finishes writing, the memory returns, and she realizes with horror that the word she screamed upon seeing Azra’s face was “Daddy.”

In the present, Marin’s screams bring Violet, Ronan, and Julianne rushing from the main house. They see Heather’s dress in the oak tree, and Marin explains how Heather vanished in an instant, with no sound or sign of an attacker. Julianne concludes that Azra is responsible, arguing that their séance awakened the entity, which is now repeating the events of 1926.

Violet and Julianne then confess to having their own paranormal experiences, sensing the presence of Violet’s deceased father and Julianne’s dead first husband. Spurred by their admissions, Marin reveals that she has been seeing the ghost of her sister. This causes Violet to realize that the ghost story that Marin told during her audition was true.

The narrative flashes back to Marin’s audition, where she told Ronan a ghost story about Molly. She recounted how, for a year after Molly drowned, Molly’s ghost appeared outside Marin’s window every night until Marin promised never to forget her. At the audition’s end, Marin claimed that the story was fictional, which impressed Ronan.

Back in the present, Marin confesses to the group that the story is true and reveals an important, guilt-ridden detail: She was home when Molly drowned and had ignored her sister’s call to come outside just before the accident. She believes that Molly’s ghost is now haunting her out of resentment. Her confession prompts Julianne and Violet to share their own stories of guilt surrounding the deaths of their loved ones.

Marin speculates that New Avalon is a place receptive to hauntings and that they each brought their personal ghosts with them. She then posits a more frightening theory: The apparitions are all impersonations that Azra uses to lure each person away. Julianne agrees, quoting the Bible and suggesting that Azra is a demon.

In another 1926 diary entry, a distraught Daisy tells Ruth about her nightmare in which her father appeared as Azra. Ruth comforts her, suggesting that Azra merely assumed her father’s form after reading her thoughts in order to torment her. After their search for Jonquil proves futile, Ruth insists that they leave the dresses in the oak tree as memorials.

Later, a frightened Mrs. Minafer warns Daisy that Azra is pure evil and that only Christian faith can offer protection. Feeling vulnerable because of her non-religious upbringing, Daisy sneaks into the main house, takes a knife, and returns to her cottage. There, she carves a daisy wheel into the wall, hoping it will keep her safe.

In the present, Marin, Julianne, Violet, and Ronan gather in the main house for the night. Marin and Julianne share a bedroom, where Julianne prays before they sleep. Marin lies awake, filled with a primal fear, before eventually drifting off. She awakens in the pre-dawn darkness to find Julianne’s side of the bed empty.

Julianne is dressed and standing at the window, staring out in a trance. She claims that her dead husband, Dean, is outside and wants her to join him. Marin looks but sees nothing in the fog. Realizing that Azra is creating a personalized illusion for Julianne, Marin tries to stop her from leaving, but she shoves Marin aside and flees the house. Marin chases after her into the mist but can’t find her. When Marin returns to the main green, she sees that Julianne’s dress is already hanging in the oak tree.