A Demon Bound by Debra Dunbar — book slip

Samantha Martin is an imp enjoying an extended vacation from Hel. She throws her gum on the floor of five-star restaurants, bounces inflatable holiday decorations down the highway at rush hour, and clips jaywalking pedestrians with her car.

Sam also likes to kill people and keep their souls inside her for all eternity, but acting on that particular urge will get her killed by the angels, who are determined to rid the world of her kind.

When her naughty hellhound lands her in trouble with the local werewolf pack, Sam is blackmailed into helping track and catch a killer. The steps she must take to appease the werewolves will put her right in the crosshairs of the angels. And with angels, there is no second chance.