Cancer treatment is at hand. The cure is promising great results, but with a very deadly catch: the patient's DNA is altered, making them into monsters who will not hesitate to kill. Kat Kurbell, a San Francisco lawyer owns a pygmy peregrine falcon. Slade Glick, a wealthy womanizer from Chicago owns an African rock python. Pierre Duvair, a gay man from Paris owns a French bulldog. Each was diagnosed with a stage IV melanoma cancer on different parts of their bodies. Each was cured of their disease after undergoing an experimental treatment administered by biochemist Bobby Biel, a melanoma survivor himself. A few weeks later, after returning home, it all begins.

When certain environmental conditions occur after midnight, they transform into beasts resembling their pets. Together with their pets that prey on the weak, they go out and kill people. They wake up in the morning, not aware of the heinous crimes they committed. Soon, the pets get tired of their masters killing humans and they try to prevent further killings. Someone has got to stop the carnage. Who? Author Payne is truly a master storyteller as he narrates a story full of suspense, tragedy, and mystery. This book will take you to an exciting journey where you will discover that humans are not very different from their pets.