“The Discovery of Witches actress will star opposite Luther's Warren Brown in Transference, an 8-episode audio thriller.Kingston – who also continues her role of River Song in an ongoing series of Big Finish plays – will here play Sam, a psychotherapist struggling with a recent bereavement.But her life changes forever when she meets a new client, Keith, played by Brown. Keith has a secret – one that will rock Sam's world to the core, and place her in the most terrible danger.“