Meet Tom. Or Dr O’Grady, as he used to be called. When you pass him on the street, most people don’t even give him a second glance. You see, Tom isn’t living his best life. Burdened by grief, he’s only got his loyal dog, Bette Davis, for company and a rucksack containing his whole world.

Then there’s Ruth and her son, DJ, who no longer have a place to call home.

But Ruth believes that you can change the world by helping one person at a time – and Tom needs her help…