I only ask that you treat me kindly, then I will do the same for you. The words of the invitation whisper gently into your ear, speaking of rare and exotic animals unlike anything you've ever seen before. To detective Alex Sampson, however, that invitation speaks of something else. Death. Attendees at a prestigious animal auction are turning up dead, each murder more brutal than the last. The only clue to each crime points to a different animal, but when did birds and butterflies go from being aphrodisiacs for fairy tales to deadly mass murderers?