Two scientists investigate the root of environmental changes and strange animal behavior at a remote site where a cult committed atrocities. The isolated location, the unraveling of their relationship, and the biome itself begin to lead them down a path of doom where primeval forces threaten to consume them. An adaptation of Laird Barron's short story "–30–".

In the early 1970s, a young woman in prison for murder reflects on what led her to the crime, the cult she was a part of, and her relationship with its leader.