After ten years with the same company, Phil Bachelor applies to be an African explorer, only to discover that the "heart of darkness" is a place very like his own office.

Phil Bachelor is looking forward to a weekend free from his fellow workers' petty concerns, but his only escape is through the labyrinth of those self-same petty concerns.

Sacked on suspicion of introducing a computer virus into the company mainframe, Phil Bachelor must fight fire with fire to clear his name.