Catfishing on CatNet is a young adultscience fiction novel set in the near future. It is Kritzer's first science fiction novel, although she has previously written a few fantasy novels and a fair number of science fiction short stories; this book is based around the AI she first wrote about in her 2015 Hugo award-winning short story
Steph and her mother on permanently on the run. When Steph was four years old her father tried to burn down their house while she and her mother were still in it, but he spent only a few years in jail before he was released to stalk them again; now they move from small town to small town across America, trying to stay ahead of him. This makes it hard for Steph to live anything like a normal life, but she does have on-line friends, most significantly, a group of friends that hang out on the invitation-only social media site CatNet.