Barney Thomson (Robert Carlyle), awkward, diffident, Glasgow, Scotland barber, lives a life of desperate mediocrity and his uninteresting life is about to go from 0 to 60 in five seconds,…

Barney Thomson, awkward, diffident, Glasgow barber, lives a life of desperate mediocrity and his uninteresting life is about to go from 0 to 60 in five seconds, as he enters…