This is the book of twenty-year-old Alicia Western, a rare mathematical genius, who willingly enters the Stella Maris psychiatric clinic carrying $40,000 in aplastic bag.

In her sessions with the psychiatrist, they discuss the essential issues of her life: mathematics, philosophy, music, God, death, the question of truth, and also about her brother Bobby Western.

Stella Maris, the second part of the novel diptych that began with The Passenger, completes the grand return of the foremost living American author Cormac McCarthy.