Lo Denham is used to being on her own. After her parents died, Lo's sister, Bea, joined The Unity Project, leaving Lo with an aunt. Thanks to its charitable work and community outreach, The Unity Project has won the hearts and minds of most in the Upstate New York region, but Lo knows there's more to them than meets the eye. She's spent the last six years of her life trying, and failing, to prove it. When a man tells Lo The Unity Project killed his son, Lo sees the perfect opportunity to expose the group. When her investigation puts her in the direct path of its charismatic and mysterious leader, Lev Warren, he proposes a deal: if she can prove the worst about The Unity Project, she may expose them. If she can't, she must finally leave them alone. But as Lo delves deeper into The Project, it upends everything she thought she knew about her sister, herself, cults, and the world around her; to the point she can no longer tell what's real or true.