Plot

A single mother living in the Irish countryside with her son begins to suspect he may not be her son at all, and fears his increasingly disturbing behavior is linked to a mysterious sinkhole in the forest behind their house.

Trying to escape her broken past, Sarah O'Neill is building a new life on the fringes of a backwood rural town with her young son Chris. A terrifying encounter with a mysterious neighbour shatters her fragile security, throwing Sarah into a spiralling nightmare of paranoia and mistrust, as she tries to uncover if the disturbing changes in her little boy are connected to an ominous sinkhole buried deep in the forest that borders their home.

Single mother Sarah O'Neill and her young son, Chris, live in an isolated house near the woods outside a small town. In the woods: a giant sinkhole. In the town: a history of mothers convinced their children have been replaced by doppelgangers. After Chris wanders into the forest on his own, Sarah becomes one of them.—mrosesteed

A mother moves with her son to a rural town in Ireland at the edge of a forest with a sinkhole inside. She senses that her son has changed and a crazy, old woman tells her he's not her son. She gets pills for her anxiety from a doctor. What's with the hole?—Scott Filtenborg

Having fled from a toxic relationship, Sarah O'Neill and her timid son Chris want to start afresh. But settling into their new home in the lush woods of Northern Ireland is easier said than done. And then, a spine-chilling encounter with a creepy stranger disturbs the fragile mother-and-son peace. As Sarah tries to move on with her life, a disturbing change in Chris' behaviour marks the beginning of a nightmarish experience where nothing is what it seems. Sometimes, truth is stranger than fiction. Does this dark turn have something to do with the forest's mysterious hole in the ground?—Nick Riganas

This film is about a single mother named Sarah O'Neill who, seeking a fresh start, moves with her young son Chris to a rural home on the outskirts of a dense forest. As they settle into their new life, Sarah discovers a massive sinkhole in the woods near their house, which immediately strikes her as an eerie and ominous presence.

Despite her initial unease, Sarah tries to adapt to her surroundings and build a sense of normalcy for her and Chris. However, her son's behavior starts to change, and Sarah becomes increasingly convinced that something is not right. She begins to suspect that the boy living with her might not be her real son.

As her suspicions intensify, Sarah's desperation grows. She seeks answers from her neighbors and explores the sinkhole's mysterious origins. The more she uncovers, the more she realizes that a sinister force might be at play, blurring the line between reality and paranoia.

Throughout the movie, the tension builds steadily, as the sinkhole's presence becomes more menacing and Chris's behavior becomes more unsettling. Sarah's attempts to distinguish truth from delusion lead her down a rabbit hole of fear and confusion. The film skillfully plays with psychological horror, using ambiguity and uncertainty to keep the audience on edge.

As Sarah's world unravels, she must confront the chilling reality that there might be something much more sinister lurking just beneath the surface. The film explores themes of motherhood, identity, and the primal fear of the unknown, taking viewers on a psychological journey that blurs the lines between reality and imagination.

In a suspenseful climax, Sarah confronts the truth behind the sinkhole and its connection to the unsettling events. The film leaves audiences questioning the nature of reality and the depths of human fear.