After waking up surrounded by dead bodies and no memory, Myfanwy Thomas is thrown into the world of the Checquy, a paranormal secret service where she's a high-level operative known as a "Rook," and finds that no one can be trusted.

Myfanwy revisits the crime scene in search of her past; Monica learns a dark truth about a victim; one of Myfanwy's dead attackers disappears from the morgue.

Myfanway finds a disturbing clue to her past; going undercover, Monica attends an EVA auction; Farrier seeks a scapegoat for the bankside murders.

Myfanwy uncovers a twisted relationship with her psychiatrist; Monica searches London with Gestalt for a missing EVA who escaped; Farrier makes a connection with a mysterious prisoner.

Myfanwy and Monica work to extricate a young EVA, while Gestalt's suspicions of Myfanwy lead to a confrontation.

Myfanwy returns to her childhood home; Farrier faces consequences at the Checquy; Monica copes with the discovery that she was betrayed by Marcus.