Gretchen Yee is your typical teenage girl until she wishes to be a fly on the wall of the boys locker room. What she wants is to learn more about boys and how they act when their around each other, but what she learns is that not everyone is as they seem; including her best friend who has recently been too busy to hang out. This book gives a humorous look on what is normally a touchy subject. As the cover says, this is a book about the Girl who saw everything.