From the back of the book:
Elizabeth Nunn, a delightful woman who happens to have an odd habit of hanging out in hospitals and abandoned churches, has a grudge. A deep grudge. The kind of grudge that requires professional help to work out, and we’re not talking about a psychotherapist. She needs shadow runners, and if they’re willing to take on the job, they’ll encounter fierce gangers, wild critters, and members of a secret magical society who fiercely guard their secrets. If the runners can survive, they can find out just what Nunn is mad about—and how far she is willing to go for her revenge.
Boundless Mercy is a series of Shadowrun Missions that were first run at major conventions. Featuring four linked adventures with complete game information, this book offers plenty of resources for gamemasters—and some steep challenges for players.