Gifty is a Ghanaian immigrant studying neuroscience at Stanford University's School of Medicine. With a family ravaged by depression, addiction, and grief, Gifty is determined to discover the scientific basis for the suffering she sees all around her. But even as she turns to hard science to unlock this mystery, she finds herself hungering for her childhood faith, and grappling with the evangelical church in which she was raised, whose promise of salvation remains as tantalizing as it is elusive. .