"Best Thrillers by Library Journal A spine-chilling, propulsive psychological suspense from international sensation Camilla Sten. The medical term is prosopagnosia. The average person calls it face blindness-the inability to recognize a familiar person's face. When Eleanor walked in on the scene of her capriciously cruel grandmother, Vivianne's, murder, she came face to face with the killer-a maddening expression that means nothing to someone like...

"Science writer Sadie Dingfelder has always known that she's a little quirky. But while she's made some strange mistakes over the years, it's not until she accosts a stranger in a grocery store (who she thinks is her husband) that she realizes something is amiss. With a mixture of curiosity and dread, Dingfelder starts contacting neuroscientists and lands herself in scores of studies. In the course of her nerdy midlife crisis, she discovers that she...