Apollo Kagwa, a rare book dealer in New York City, marries librarian Emma Valentine after a whirlwind romance. Despite Emma’s desire to move to Brazil, Apollo insists they stay in the city, and she eventually concedes. Soon, Emma falls pregnant. Seeking closure regarding his traumatic childhood—specifically the
mysterious disappearance of his father when he was a boy—Apollo gifts Emma a rare children's book titled *To Be Read*. Shortly after the birth of their son, Brian, the family is plunged into psychological turmoil. Emma begins exhibiting signs of severe postpartum depression, claiming that the infant is not their real baby and warning Apollo never to untie a red ribbon tied around the child’s wrist.Dismissing her fears, Apollo foolishly cuts the ribbon, inadvertently unleashing a horrifying tragedy. Days later, Emma commits a brutal act and vanishes into thin air, leaving an inconsolable Apollo to deal with the police and his own shattered reality. Consumed by grief and desperate to find his wife, Apollo is approached by a
mysterious stranger named William Wheeler, who introduces him to an underground community of secretive mothers hiding in plain sight. Apollo learns that Emma is living among them, having fallen victim to a sinister, supernatural syndicate of creatures who steal human infants and replace them with malicious changelings.As Apollo delves deeper into this hidden, gothic underbelly of New York, he uncovers dark family secrets. It is revealed that his mother, Lillian, made a devastating pact decades ago to save Apollo from the same supernatural forces. Apollo’s quest transforms from a missing persons investigation into a brutal supernatural war. He is captured, tortured, and forced to confront the literal and figurative monsters of his lineage. Meanwhile, Emma undergoes a harrowing psychological and physical reclamation, grieving the loss of the fake child while plotting her revenge against the entities that manipulated her mind and tore her family apart.Ultimately, Apollo escapes his captivity, hardened and forever changed by the horrors he has witnessed. He finally reunites with Emma in a remote, heavily guarded island sanctuary where the displaced mothers protect one another. Though the trauma of what they endured remains an unhealable wound, and the supernatural threat is far from eradicated, Apollo and Emma find a fragile, tentative path toward reconciliation. They must learn to rebuild their lives in the shadow of the monstrous forces that stole their innocence, realizing that the modern world hides ancient, terrifying truths just beneath the surface of everyday life.