HE IS MR. BY-THE-BOOK, WITH A SECRET... Shapeshifters live among us but remain unknown to most people except for the highest echelons of law enforcement, the military, science, and medical fields—until now. SHE IS A LOOSE CANNON WITH AN ATTITUDE... When a fatal virus strikes Shapeshifters all over the West coast, including members of the Shapeshifter Task Force in San Laura, California, reinforcements are called in from around the United States. TOGETHER, THEY JUST MIGHT CATCH A KILLER. Lt. Nikki Hill of Missouri comes to San Laura and is partnered up with Lt. Sean Evans. They quickly butt heads on everything from proper police procedures to the moral ethics of euthanasia. They can't seem to get a lead on the serial killer even as members of their own families are stricken with the virus. In their grief they turn to each other and hope they have time to discover if their relationship stands a chance or if they might just be the next victims of the species extinction disease.