Murder in the channel Islands

What connects the brutal murder of a former French Resistance agent now living in Jersey with the German occupation of Normandy, half a century ago ?

When Customs Inspector Weber's holiday in Normandy is interrupted by a request to investigate, he reluctantly agrees to help out. From Granville to the Channel Islands and back again he pursues a trail of clues, each more confusing than the last. Unless he discovers the truth, a 50-year-old mystery may never be solved, and time is running out.