When Parisian private investigator Aimรฉe Leduc picks up the phone one hot July afternoon, the call turns her life upside-down. The voice on the other end, with its heavy German accent, belongs to a woman named Jutta Hald. Jutta claims to have shared a jail cell with Aimรฉeโs long-lost mother, a suspected terrorist on Interpolโs most wanted list. If Aimรฉe wants to learn the truth about her mother, she is to meet Jutta at a rendezvous point in an ancient tower in the Sentier. But when Aimรฉe arrives, Jutta is dead, shot in the head at close range.
Aimรฉe realizes she has stumbled into something bigger than Jutta let on, and that her own life is in danger. She has a lot of unsolved mysteries in front of her: Jutta Haldโs murder, resurfaced materials from Sydney Leducโs terrorist activities in the 1970s, police suppression of important information. The question is, can someone else ends up dead?