An ancient ritual. A modern-day crime.

A body is found in a peat bog near the banks of the River Tiber. Teresa Lupo, a maverick pathologist, believes it was a young woman sacrificed long ago in an ancient Roman ritual. But she's wrong. Whilst the method of killing is ancient history, this murder happened very recently. The horror of these ritualistic killings is very much alive and it's up to Nic Costa to get to the bottom of it.