A bike is found on a bridge, precisely on the border between Somerset and Gloucestershire. Two detectives meet at the scene to find answers. It's an irreconcilable impasse. They must work in tandem.
Birgitte Jensen's life has been turned upside down, and that's not an ideal position for a cyclist. A masterclass in interrogation turns up no useful information whatsoever.
A revelation about the bike's ownership leads the detectives to the door of Somerset's sinister Mayor. The detectives discover that county politics are not to be messed with.