Karen Holt is an agent of a very unique intelligence service. Benjamin Hood is an out-of-place researcher at the British Museum: cynical, disloyal and with a peculiar sense of humor. Karen is investigating a spectacular series of thefts of historical objects all over the world. Benjamin spends his holidays in France, lamenting a lost love. When the respectable historian who has been helping Karen track down the thieves dies under mysterious circumstances, she has no other choice than to recruit Ben, whether he wants to help or not.