Meet the Rev Adam Smallbone. He is a Church of England vicar, newly promoted from a sleepy rural parish to the inner-city world of St Saviour's in east London. It is a world he has little experience of, and it shows.
It is an incredibly difficult job being a good, modern, city vicar. Equally, it is a very hard job being married to one. Alex, Adam's long-suffering wife, does her best to support him, but she has her own career as a solicitor to worry about. Plus she is no one's idea of a conventional vicar's wife.
Every day throws up a moral conflict. All are welcome at St Saviour's and Adam can't turn any of them away, even if they are clearly lying or just plain annoying.
After a terrible review of one of his sermons on a Christian website, Adam has a crisis of faith, which to Alex's surprise seems more serious than his usual biannual episodes of doubt. While he's at home experimenting with leaving the cloth by sitting in his pants watching daytime telly and gambling on the internet, someone else is travelling the parish impersonating a vicar to elicit free beers and avoid parking tickets.
Adam's meltdown reaches a head when he drunkenly comes on to Ellie at a Vicars and Tarts party in aid of the school library, and Alex finally snaps.