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.

Unity Field, a “free love” cult from the ’70s, is mostly remembered for its notorious mass suicide led by Harris, its charismatic leader. While all members are supposed to burn in a fire together, young Cynthia is spared by chance. Years later, the nightmare of Unity Field remains buried in her mind. But when those around Cynthia start killing themselves, and she begins having visions of Harris, she may be forced to confront the past — before it confronts her.