Tom and Babara are absolutely loveable as the middle aged couple who are looking for "it". They realise that "it" is being out of the daily grind of making a living. How do they get "it"? They go self sufficient using their own back garden.
The scenario seems quite real and is even feasible on the land size they had available.
I perhaps even dream of doing it myself one day.
To contrast the strong marital harmony and bliss of Tom and Babara we have their next door neighbours, who are also their best friends.
Suffering from success and money their relationship is strained by the meaningless everyday.
This strengthens our feelings and support for Tom and Babara in their endeavours.
I love this! Hope you will too.