The year is 1964. Bobby Bailey doesn't realize he is about to fulfill his tragic destiny when he walks into a US Army recruitment office. Secretive, damaged, innocent, trying to forget a past and looking for a future, Bobby is the perfect candidate for a secret US government experimental program, an unholy continuation of a genetics program that was discovered in Nazi Germany nearly 20 years earlier in the waning days of World War II. Bailey's only ally and protector, Sargent McFarland, intervenes, which sets off a chain of cascading events that spin out of everyone's control. As the titular monsters of the title multiply, becoming real and metaphorical, the story reaches a crescendo of moral reckoning.