Vets deal with euthanasia all of the time. Mostly old animals or those with an incurable disease. But sometimes for behavioural reasons. The animals have no say it is up to the owner and the vet.
Animal abuse and cruelty are endemic in the world and apart from poorly funded charities there is very little policing. But imagine if there was someone avenging abused animals. A veterinary vigilante.
Someone on the animal's side, euthanizing the cruel human on the animal's behalf. All of the places in this book are real. There are very few names and no dates, and, after all, people disappear all the time. Is this a work of fiction, or the true memories of a veterinary psychopath: The Vetilante?