While I'd hardly say that "Doc Martin" is a realistic show in its depiction of small-town life in the UK, it is entertaining. Because of this you need to sometimes allow yourself to just accept what you're seeing without question. After all, could this many strange things happen in a place as small as Portwenn?! In this case, the happenings are REALLY strange--that's for sure!
When the show begins, folks learn that the Doc and Louisa are getting married--and word spreads very quickly. However, the focus of the show is much more on strange breathing difficulties that start overtaking many people--breathing problems that could kill unless they are stopped soon. But how is a weird fungal infection occurring?! And where is this fungus?! The answers to this are pretty weird--even for this show.
This is an enjoyable but odder than usual episode. Watch and you'll see what I mean.