When Earth's first Bring Your Alien to Work Day becomes mandatory, every employee receives an interplanetary companion perfectly matched to their job, temperament, or hidden calling. Everyone except Walt.

A quiet compliance liaison at the Department of Interplanetary Compliance, Walt is marked with the humiliating notice: NO AFFINITY MATCH FOUND. With no alien of his own to supervise, he is sent across the city to check on everyone else's. What starts as a bureaucratic errand becomes an unforgettable tour through a transformed world: cafés where coffee inspires confessions, hospitals where surgery turns miraculous, construction sites where gravity takes suggestions, schools where adults and children rediscover what they forgot they loved, and malls where price tags tell the truth.

By the end of one absurd, tender, alien-filled Tuesday, Walt begins to understand that not every purpose fits neatly into a category?and sometimes the person with no match is exactly the person free enough to notice what everyone else is missing.