Wellington has handed Keane his least favourite job - he is to get himself captured by the French, escape and make his way to Paris to work undercover. There are rumours of unrest against Napoleon's regime and Keane's task is to work out which, if any, the British should support. Keane finds himself in an unknown, confusing political and social world, where even the contacts seem dubious. Whom can Keane trust in his own double agent role?