Dark Is When the Devil Comes Summary: A Chilling Captivity Thriller
TL;DR: A Return Home That Turns Into a Trap
Dark Is When the Devil Comes is a dual-perspective psychological thriller set in Cornwall.
One thread follows Hazel Maddon, a recovering alcoholic and amateur mycologist held captive in the cellar of Bray Farm by a handyman named Andrew Garrison, who believes he is curing women of “devils in their heads.”
- The captor: Andrew Garrison, a council worker who murdered multiple women and buried them in the woods around Bray Farm.
- The second captive: A teenage girl Andrew forces to impersonate his dead sister, Maria.
- The parallel thread: Hazel’s estranged sister Cathy and childhood friend Suzie investigate her disappearance.
- The internal threat: Hazel hallucinates a monstrous “other sister,” rooted in a parasitic tumor removed from her spine as a child.
- Central themes: trauma and dual identity, sisterhood, misogynistic control, and monsters who wear ordinary faces.
Who Will Enjoy This Book
- Readers of psychological thrillers built on captivity and survival.
- Fans of gothic horror with rural, isolated settings and folklore.
- Readers drawn to dual-perspective narratives that alternate between victim and investigator.
- Those interested in body horror and trauma explored through metaphor.
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Characters In This Book
| Character | Role |
|---|---|
| Hazel Maddon | The protagonist, a 30-year-old amateur mycologist who is abducted and held at Bray Farm. |
| Cathy Maddon | Hazel’s elder sister, a single mother of two who leads the search for her. |
| Andrew Garrison | The antagonist, a council handyman who abducts women and performs trepanation on them. |
| Bunny Miller (“Maria Garrison”) | A teenage captive forced by Andrew to pose as his deceased sister, Maria. |
| Suzie Trebath (White) | Hazel and Cathy’s childhood friend, a pharmacist in Idless who decodes Hazel’s hidden message. |
| Teddy White | Suzie’s husband, a dentist who provides the car used to reach Bray Farm. |
| Danny Maddon | Cathy’s 15-year-old son, whose school video project reveals the location of Bray Farm. |
| Scout Maddon | Cathy’s toddler son, briefly taken by Andrew and returned unharmed. |
| Joe | Hazel’s estranged husband, a beekeeper in Wiltshire. |
| The “Other Sister” | A hallucinated entity modeled on the teratoma tumor removed from Hazel’s spine in childhood. |
| Joseph Bray | A 19th-century farmer in local folklore who killed his family at Bray Farm. |
| Sgt. Neil Jenkin | A local police officer who initially dismisses Cathy’s missing-person report. |
Dark Is When the Devil Comes Summary
Warning: spoilers ahead.
Hazel Maddon wakes in her parents’ house in Idless after a night of heavy drinking. Her parents are away on a 50-day cruise, and divorce papers from her husband Joe have just arrived.
She calls her elder sister Cathy, from whom she has been estranged for five years after a falling out at Hazel’s wedding, and they arrange to meet for lunch on Saturday.
While foraging for devil’s fingers, Hazel meets Andrew Garrison on a town bench. He mentions that he has bought and is renovating Bray Farm, the property tied to the legend of Joseph Bray.
After Hazel collects toiletries from her childhood friend Suzie at the pharmacy, Andrew offers her a ride up to the farm to search for the fungus. He tells her that his parents died in a car crash thirteen years earlier and that his three-year-old sister Maria vanished from her booster seat and was never found.
At the boarded-up farmhouse, Andrew lures Hazel into a basement and locks her inside. The cellar holds a mattress, a bucket, and the name “Diana” scratched into the windowpane, indicating she is not his first captive.
Withdrawal from her prescribed medication, Leprazine, triggers vivid hallucinations of a dark, hair-covered entity she calls her “other sister.” The figure traces back to her childhood, when surgeons removed a parasitic teratoma containing skin, hair, and bone from her lower spine.
When Hazel fails to appear for lunch, Cathy goes to their parents’ house with Suzie. They find the family’s pedigree Persian cats shut inside a suitcase and a nanny cam holding a five-second clip of a black, multi-limbed shape crawling behind Hazel.
Andrew brings Hazel a bag of her clothes, then leads her blindfolded into the woods to show her shallow graves marked by boulders. He explains that he killed these women as “mercy killings” to rid them of the devils in their heads.
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Through the cellar door, Hazel begins speaking with a frail, shaven-headed girl who calls herself Maria. They trade pieces of Wonderland cherry and apple gum through the door slot.
Hazel recalls a childhood trick of writing invisible messages in acidic liquid. She writes “BELLE VUE” in urine on a pharmacy receipt and persuades Andrew to take it to Suzie’s pharmacy to check her medication’s half-life.
At the pharmacy, Suzie holds the receipt over a radiator and reads the hidden words. She contacts Cathy, and the two drive to the Belle Vue treatment center.
Cathy learns the extent of Hazel’s history there: Joe had Hazel admitted after she burned down all twelve of his beehives during a psychotic break. At the center, Cathy runs into Andrew, who is working as a council maintenance worker, and he steals the hidden note from her pocket.
Realizing Hazel is signaling for help, Andrew abducts Cathy’s toddler son Scout from his home and takes him to the farmhouse bathroom, threatening to drown him. Hazel escapes the cellar, sprays hairspray into Andrew’s eyes, pulls Scout from the water, and hides him in a wardrobe before Andrew sedates her.
Andrew sneaks Scout back to Cathy’s house overnight, leaving him on the sofa smelling of well water. When Hazel wakes, Andrew shaves her head and prepares to drill into her skull.
Meanwhile, Cathy’s son Danny shows her footage from a school history project on Joseph Bray. In the background, Cathy spots a hidden pickup truck and a copper weather vane shaped like a conger eel, which she matches to Hazel’s phone GPS data.
Andrew binds Hazel to a chair in an upstairs room and begins drilling into her forehead.
The power cuts out, and Cathy and Suzie arrive at the farmhouse, where Andrew slashes Cathy across the cheek and overpowers Suzie.
Hazel frees herself and crawls downstairs. The girl called Maria, whom Hazel had persuaded to climb out a bathroom window, strikes Andrew in the temple with a stryker, a heavy stone tied inside a sock, fracturing his skull.
Before fleeing into the snowstorm, Hazel realizes that “Maria” is actually Bunny Miller, the daughter of a squatter named Astrid. Andrew had murdered Astrid, held Bunny captive for years, and shaved her head to make her resemble his dead sister.
Hazel sends Cathy, Suzie, and Bunny ahead to the car. She retrieves petrol from the generator shed, douses Andrew and the interior of the farm, and ignites it with Cathy’s lighter.
As the fire spreads, the “other sister” entity appears as a towering mass of hair and flesh, shielding Hazel from the flames. Cathy runs back inside and drags her out into the snow.
In the epilogue, months later, doctors reopen Hazel’s back scar and remove the remaining fluid and inflamed tissue of the teratoma.
Excavations at Bray Farm uncover six skeletons, including the real Maria Garrison and Astrid Miller.
Andrew survives the fire but remains severely brain-damaged and institutionalized. Bunny, now using her real name, is in therapy and attends school, and she joins Hazel and Cathy to scatter Astrid’s ashes in the woods.
Books Like Dark Is When the Devil Comes
- The Butterfly Garden by Dot Hutchison — An isolated captor holds young women in a secluded prison and enforces bizarre rituals, echoing the confinement and control at Bray Farm.
- Sharp Objects by Gillian Flynn — Toxic family dynamics, estranged sisters, small-town secrets, and physical scarring sit at the center of both novels.
- The Collector by John Fowles — A claustrophobic duel of minds between a delusional male captor and his imprisoned captive.
- In the Woods by Tana French — Atmospheric dread, sinister woodland, childhood trauma, and local folklore drive both stories.
- Then She Was Gone by Lisa Jewell — A family investigates a sudden disappearance that exposes long-buried secrets.
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Book Details at a Glance
- Genre & Subgenre: Psychological Thriller / Gothic Horror / Small-Town Mystery
- Core Narrative Tropes: Abduction and captivity, unreliable narrator, dark doppelgänger, body horror, small-town secrets, estranged sisters, killer hiding in plain sight
- Tone & Atmosphere: Claustrophobic, eerie, cold, visceral, suspenseful
- Primary Conflict: Hazel’s survival inside Bray Farm while hallucinating her “other sister,” set against Cathy’s search to find her in time
- Pacing Style: Slow-burn dual perspective that accelerates into a violent blizzard-set climax
- ISBN: 978-1250334411
- Pages: 336
- Book Structure: 41 chapters plus an epilogue, alternating between perspectives
