Sue Swanson is dedicated to her latest project, writing a book on laboratory methods for forensic investigations, when her daily routine is disturbed by two local murder cases. In particular, her attention is drawn to the DNA evidence related to those cases. Reluctantly, she starts her own investigations, while her private life is being shaken up and the impact of the murders increases steadily. Eventually, her life becomes frustratingly complicated. This is the second Sue Swanson novel, where science meets the world of crime. Thrilling, tense and witty, the story is told from the perspective of an English scientific consultant living in Germany.