Hokum

Ohm Bauman is a successful author stuck on the bleak epilogue of his Conquistador trilogy. After glimpsing the ghost of his mother in his home, he decides to drive to The Bilberry Woods Hotel — a remote inn in rural Ireland where his parents had once honeymooned — to scatter their ashes.

He meets the staff: Mr. Cobb (owner), Mal (front desk), Fergal (groundskeeper), Fiona (bartender), and Alby (bellboy). Ohm is abrasive and dismissive, though he warms to Fiona, who helps him locate the spot in an old photo of his mother. While spreading the ashes, he encounters Jerry, a local who lives in his van and drinks milk laced with magic mushrooms.

Back in the bar that night, Fiona and Alby tell Ohm about the locked-off honeymoon suite — said to be haunted by a witch that Cobb trapped inside long ago. Ohm humiliates Alby for harboring writing ambitions. Alone in his room afterward, Ohm tries to hang himself. Fiona finds him in time. He wakes in the hospital days later, alive only because of her.

When Ohm returns to the hotel, Mal informs him that Fiona has been missing since the hotel's Halloween party and that Jerry is the prime suspect. Ohm confronts Jerry, who claims he saw Fiona's ghost in the hotel directing him toward the honeymoon suite.

The hotel is now closed for the season. Ohm and Jerry break in to investigate. Fergal apprehends Jerry, knocks him unconscious, and drives him toward the Garda. Ohm slips into the honeymoon suite alone. Inside, supernatural visions overtake him — fragments of his childhood that reveal he accidentally shot his mother dead as a boy. Mal finds him there. As they leave, Ohm inspects a dumbwaiter and discovers Fiona's corpse inside.

Mal locks Ohm in the honeymoon suite and flees. Ohm finds a tape recorder on Fiona's body and learns the truth: she had been pregnant with Mal's baby, and Mal had drugged and locked her in the suite to keep his family from finding out.

Jerry wakes in Fergal's van and escapes, making his way back to the hotel. Inside the locked suite, the hauntings intensify. Ohm spots a fire-escape route on a map and rides the dumbwaiter down to the basement. There he encounters the witch directly. He flees back to the suite and fends her off with a protective circle of chalk drawn on the floor.