Grow Up! is a 23-year-old man's diarised account / journal of his travails upon returning home from a longish trip overseas ...

The central character (Thom) is heart-broken after leaving the woman of his dreams in London (or so he thought she was), conceding he left her / the relationship because he was afraid; afraid to commit to a long-term relationship because he felt the need to come home and "grow up" - although not entirely sure what that entailed exactly.

And, upon returning home (to a place called Morson Cove), he decides to write a journal over the course of several heady months, penning some of the events and encounters he experiences; his dealings with dysfunctional, crude and crass characters, plus his own thoughts and feelings as he struggles to find some sense of direction amongst it all, and "grow up".

However, he's not entirely sure what that involves, exactly; does it mean getting a "real job," having a "real relationship" - whatever they are?

Upon returning home however, he realises that the very things he desired all along were right under his nose - at home: building a meaningful relationship, finding a suitable job - getting a sense of direction, and of course, "growing up" - in a way that makes sense to him.

Grow Up! is also set in a time (2005) when technology wasn't anywhere near as prevalent as it is today, so in that sense is set in a less complicated time & place ...