Paris, 1960. Europe is in the grip of the gentleman master thief The Raven. His burglaries are spectacular and he always emerges unscathed. Young hotshot investigator Nicolas Legrand stuns the public when he confronts the master thief and fatally wounds him. London, 1964. An ancient ruby – one of the legendary 'Eyes of the Sphinx' – is stolen from the British Museum. At the crime scene: a raven feather. Is somebody trying to follow in the Raven's footsteps? – Legrand is back on the case. At the same time in Zurich a phone rings. Constable Anton Jakob Zellner looks up from behind a mountain of files. He has no idea what lies hidden in a bank vault, just a few hundred meters away from him. As he reaches for the receiver his life takes a crucial turn…