Newlyweds and documentary filmmakers Devyn and Ben travel to Thailand to capture the legend of Mae Nak — a spirit said to manipulate the living through love and rage. When Devyn begins experiencing violent night terrors and unexplained physical attacks, their romantic project spirals into psychological terror. Days later, three bodies are discovered — and Devyn vanishes. Back home, her twin sister Darsi and editor Luke sift through recovered footage and Devyn’s journal, searching for answers. As they uncover spectral figures hidden within the frames, the mystery deepens — and the line between psychological unraveling and possession begins to disappear.