To address the "blood rage" plague and protect their future, Matthew and Diana seek help from Diana's friend, Dr. Christopher Roberts , at Imperial College London. Diana uses her magic to prove their supernatural nature and secure his scientific assistance.
Diana and Matthew arrive at Sept-Tours to find the family in mourning. They learn that Emily Mather was murdered by Peter Knox at the end of Season 2. "A Discovery of Witches" Episode #3.1(2022)
Agatha Wilson brings Knox's crimes before the Congregation in Venice. In a rare move, the council—including the witch Satu —votes to strip Knox of his powers and expel him for killing a witch on protected vampire territory. To address the "blood rage" plague and protect
Diana discovers she is pregnant with twins , a revelation that complicates the family's safety as they face increasing threats from the Congregation and individual enemies. Diana and Matthew arrive at Sept-Tours to find
The episode introduces Benjamin Fuchs , a "blood-raged" vampire Matthew sired and abandoned centuries ago. Benjamin is revealed to be a brutal killer currently stalking the family.