Gifty is a sixth-year PhD candidate in neuroscience at Stanford University School of Medicine studying reward-seeking behavior in mice and the neural circuits of depression and addiction. Her brother, Nana, was a gifted high school athlete who died of a heroin overdose after an ankle injury left him hooked on OxyContin. Her suicidal mother is living in her bed. Gifty is determined to discover the scientific basis for the suffering she sees all around her. A powerful novel about a Ghanaian family in Alabama from the author of "Homegoing".