A serial killer is ravaging the American expat community in Paris, his kills reminiscent of Jack the Ripper.
For FBI special agent Adele Sharp, it's a mad race against time to enter his mind and save the next victim - until she uncovers a secret darker than anyone could have imagined.
Haunted by her own mother's murder, Adele throws herself into the case, delving into the grisly underbelly of a city she once called home.
Can Adele stop the killer before it's too late?