When an old Paiute woman finds a four-year-old boy tied to a mattress in an abandoned mountain shack, San Diego County Child Abuse Investigator Bo Bradley gets the case. The timing couldn’t be worse, because bipolar Bo is sliding into a manic episode her meds won’t subdue overnight. But when a pair of killers invade a children’s hospital, attempting to shoot the deaf little boy who reminds Bo of her lost sister, she has to choose. She can save her sanity (and her job), or save the boy. For Bo it’s a no-brainer, resulting in a desperate, manicky, midnight flight into a desert landscape where the line between delusion and reality vanishes.