Living in Old Town Sinus Medii, Simon is used to the idiosyncrasies of systems that are more than a hundred years old. But when a new delicatessen moves in next door, the odors that come through their shared air system into his upscale tailor shop threaten to make him close his business. He wants to be a good neighbor, but he has to do something about the noxious fumes before he loses all his customers.