A young journalist, reeling from loss, investigates a mysterious cult in the California redwoods, only to be drawn in by its charismatic leader—an addictive novel that asks why people give up control and what it takes, ultimately, to find your place in the world.

Faruq Zaidi, a young journalist reeling from the recent death of his father, a devout Muslim, takes the opportunity to embed in a cult called The Nameless. Based in the California redwoods and shepherded by an enigmatic Vietnam War veteran named Odo, The Nameless adhere to the 18 Utterances, including teachings such as “all suffering is distortion,” and “see only beauty.” Faruq, skeptical but committed to unraveling the mystery of The Nameless, extends his stay over months, as he gets deeper into the cult's inner workings and compassionate teachings. But as he gets closer to Odo, Faruq himself begins to unravel, forced to come to terms with the memories he has been running from while trying to resist Odo's spell.

Told in three seamlessly interwoven threads between Faruq’s present-day investigation, Odo’s time before the formation of the movement as a an infantryman during the Vietnam War alongside three other Black soldiers, and a documentary script that recounts The Nameless’s clash with a Texas fundamentalist church, O Sinners! examines both longing and belonging. Ultimately the novel asks: What is it that we seek from the people we admire and, inevitably, from each other?