man gets a letter from an old work colleague, writes her back, and leaves his home and wife to post it - walking past the local mailbox, to the more central one in town, to straight out of town. and he's off - ready to walk all the way to her bedside on the other side of England. seemed like another addition to the now popular 'old man rebels at the (near) end of his life to make some meaning' genre (the 100 year old man who... disappeared, a man called ove, major Pettigrew..., etc). it was rather funny in spots, but nothing better than meh.