One of the living for one of the dead.

In an attempt to pull her family together, Adèlle travels with her young daughter Sarah to Wales to visit her father. The morning after they arrive, Sarah mysteriously vanishes in the ocean. Not long after, a little girl bearing a striking resemblance to their missing daughter reveals that she has retuned from the dead — and that Sarah has been taken to the Welsh underworld.
In The Dark, consciousness is carried by the dead — a plane of “Welsh afterlife”. The story fights on E8/E9 of the E0–E14 reality ladder, compressing death, grief, myth, sacrifice, evil.
Films fighting at the same level of reality, about the same things.
The same preoccupations examined at another scale — one mind versus a nation.
Other films that move a human interior onto the same kind of thing.
The Legend of La Llorona (2011)consciousness in the dead · folklore ghost village
Talk to Me (2023)consciousness in the dead · hand-possession ritual
Charlie St. Cloud (2010)consciousness in the dead · spirit realm
The Deep House (2021)consciousness in the dead · submerged haunted house
Nosferatu the Vampyre (1979)consciousness in the dead · undead epidemic
The Discovery (2017)consciousness in the dead · afterlife research facilityThe same preoccupations carried by a different kind of thing — grief told through the dead, an animal, a machine.
Monster House (2006)consciousness in objects · death, grief
A Monster Calls (2016)consciousness in monsters · death, grief
Annabelle: Creation (2017)consciousness in monsters · evil, grief
Song of the Sea (2014)consciousness in animals · grief, myth
Over the Moon (2020)consciousness carried elsewhere · grief, myth
Child of Kamiari Month (2021)consciousness in animals · grief, myth