Grace and Tom Penderford had a strong marriage, a comfortable home in the English countryside and a healthy baby girl, Chloe. They were happy. They were normal. But soon after Chloe turns three, tragedy strikes when a disease called sepsis claims the life of their daughter, devastating their small family. The Penderfords had never heard of sepsis?a cruel, indiscriminate disease that takes a life somewhere in the world every three and a half seconds. Now, with their world crumbling, they must mend each others broken hearts, and try to save their marriage if they can.