As always, I enjoyed this Michael Ridpath novel. It is not quite so good as his first works, which really gripped me when I read them years ago - and again upon re-reading. However, it's not worth rejecting a Ridpath because its not at the top of the pile.
The male and female characters are interesting, meeting while they are young and at university and then at the beginning of their careers. The novel works between these early developments and their coming together again in a an dot.com business, devised by the wealthy student, Guy. David, his friend and admirer on a scholarship when they first meet, is a fairly successful banker in a boring job. Guy offers him a renewed life, with the prospect of great wealth. David, to do him justice, is more interested in the former than the latter, although he has enjoyed the holiday with Guy in which he experiences great wealth, his first sexual encounter, fear at possible reprisals and anxiety about his relationship with Guy.
The women, Megan and Ingrid, join the holiday, a later almost disastrous plane trip, and eventually the business. Both have careers that are relevant - Ingrid is a successful magazine editor and Megan is a lawyer. In the background is Guy's odd brother and his competitive father.
Murders, threats and the development of the dot.com business and its possible failure move the story along at the fast pace expected from a Ridpath novel. At the same time, the relationships between the characters are, at times, complex and a valuable contribution to creating a novel which is really worth reading. Guy and David's relationship has various strands, seemingly superficial with its rich boy vs poor boy theme. In reality, both men have character flaws which the other exploits and forgives. The relationship between the siblings, David with his largely ignored sister and Guy with his brother for whom he seriously cares, is a case for reconsidering the simple interpretation of the two as a 'good' poor man and 'bad' rich man.
Fatal Error can be read a thrilling quick read, or with more attention to the complexity of the characters. I read it for both, and as an aside, enjoyed the focus on the dot.com businesses.