Like two ships passing in the night -- if one was a narrowboat and the other a luxury yacht.
Disgraced private school teacher Giles Rathbourne has been sent home on extended sick-leave and is stuck in a rut of obsessive housework and drinking. His ex may have been a snobbish bastard, but without him, Giles is adrift, rattling around his huge, lonely house. When a dreadlocked narrowboater's engine breaks down at the end of his canal-side garden, Giles is furious at this invasion of his privacy -- for a while.
Smutty might not have ever held down a proper job, but the fire-dancing, free-spirited traveller can recognise an opportunity for mutual benefit when he sees it. Giles' extensive gardens are in as desperate need of attention as the upper-class hunk is himself, whereas Smutty knows a thing or two about plants and needs a place to moor up.
A simple business arrangement between two men who have nothing else in common? It would be -- if they could keep their hands off each other!