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, as he enters the grotesque and comically a...

Marcus Walwyn develops a fatal obsession for a young girl he meets on a train. Corrupted by a book he reads by the convicted serial killer Helmut Kranze he embarks on a murderous mission.