In southeast London, a young mother has been accused of an unthinkable crime: poisoning her own child - and then leaving him to die.The mother, Ellie, is secretive and challenging - she's had a troubled upbringing - but does that mean she's capable of murder?Criminal defence lawyer Sarah Kellerman is tasked with proving Ellie's innocence. But Sarah's desperate pursuit of the truth will draw her - and her five-year-old son - into unimaginable danger...Unsettling and compulsive, In the Blood is a chilling study of class, motherhood and power from a new star in crime fiction.