Karen never planned on being a hero. A recent widow, she has her hands full with work and parenting her son Max. Then Karen saves Jeremy's life during a drug store robbery, and quickly discovers that the young man is intent on paying her back at any cost. At first, life starts improving for this good Samaritan, but as Jeremy's efforts become more extreme, Karen starts to wonder...。在這個反烏托邦世界中,一種經由語言溝通散播的傳染病到處肆虐,而唯一對此疾病免疫的語言學家,正遭到暴虐無道的組織追捕。。