Rudolph Hess is prisoner number 7 and after he dies in 1987 Spandau prison, Western Germany is destroyed - but first a secret diary written by number seven is found by a German policeman. Many are interested in the diary and especially the investigation into Hess's flight to England in 1941. Did he have contacts there? Did he go alone? Did he have a double who was captured there? Many questions that many different bodies wish to find the answers to.