Paris, 1960. Europe is gripped by the gentleman master thief known as the Raven. His burglaries are spectacular, and he always escapes unscathed. Young investigator Nicolas Legrand shocks the public when he confronts the thief and fatally wounds him.

London, 1964. An ancient ruby, one of the legendary Eyes of the Sphinx, is stolen from the British Museum. A raven feather is found at the crime scene, raising the question of whether someone is following in the Raven’s footsteps. Legrand returns to the case.

At the same time in Zurich, Constable Anton Jakob Zellner answers a phone call while buried under a mountain of files. Unaware of what is hidden in a nearby bank vault, he is about to have his life take a crucial turn.