Because her mum is always on the move, Steph hasn't lived anywhere longer than six months. Her only constant is an online community called CatNet - a social media site where users upload cat pictures - a place she knows she is welcome. What Steph doesn't know is that the admin of the site, CheshireCat, is a sentient A.I. When a threat from Steph's past catches up to her and ChesireCat's existence is discovered by outsiders, it's up to Steph and her friends, both online and IRL, to save her.