A dense plodding difficult read whch demands much of its reader but offers much to those who stick it out. I came at this book from the wrong direction. Having seen Cronenberg's film A Dangerous Method (LOOSELY based on this book and the play the Talking Cure) I expected this book to be mostly about the troika of Jung-Freud-Spielrein relationship and only tangentially about pyschoanalysis(what the movie was more or less). The ratio in the book is much the reverse- mostly about the birth of pyschoanalysis(through the prism of Jung Freud and especially through the forgotten works of former Jung Patient/Lover Speilrein)with dashes of the troika as a flavoring akin to strong spices.
A hard book to read but worth it in bringing the beginnings of Modern pyschoanalysis to light and re-humanizing two of the giants of the field back into what we all are- flawed fully human beings.