Bruno, chef de police, can't get a moment's peace. He's uncovered a cache of old bank notes and is also dealing with a wave of burglaries. The victims include the recently retired head of Britain's Joint Intelligence Committee, which brings old flame Isabelle back to St Denis. The next burglary ends in murder: the victim's bludgeoned body found by his lover - the prime suspect. But Bruno is on another track. Meanwhile, the Mayor introduces Bruno to Jacqueline, who is researching the theory that ...