Lo Denham is used to being on her own. After their parents died, Lo's sister, Bea, joined The Unity Project, leaving Lo in the care of their great aunt. Thanks to its charitable work and community outreach, The Unity Project has won the hearts of most in the Upstate New York region, but Lo knows there's more to the group than meets the eye. She's spent the last six years of her life trying—and failing—to prove it.
When a man shows up at the magazine Lo works for claiming The Unity Project killed his son, Lo sees the perfect opportunity to expose the group and reunite with Bea once and for all. 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 of her suspicions about The Project, she may expose them. If she can't, she must finally leave them alone.
As Lo delves deeper into The Project, the lives of its members, and spends more time with Lev, 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. Lo never thought she could afford to believe in Lev Warren . . . but now she doesn't know if she can afford not to.