London,1934. Melanie Klein is one of the most admired, yet controversial, psycho-analysts of her time, renowned for her unique insight into the secret world of childhood. But her relationship with her psycho-analyst daughter Melitta has been damaged almost beyond repair, and an unexpected message from abroad brings it to bitter confrontation. The news also poses a mystery that even Mrs. Klein, despite her genius for analysis, cannot solve. It is left to her new assistant, a refugee from Hitler's Berlin, to find a possible answer.