Ким Филби - one of the most famous spies of the XX century, and it is written about him quite a bit. However the investigation of the British writer-historian Ben Макинтайра, founded in a number other on the unpublished archived materials, acquaints us with this unique personality as never close. The damage, inflicted by secret activity of Филби to two states, Great Britain and USA, would be where less than, if it were not for strong masculine friendship complicit on traditional English ideals of the personal devotion and honour of gentleman. Nicholas Эллиотт from МИ- 6 and head of CIA James Энглтон are pin faiths to the friend Киму and stood for him a wall until it became not late. Макинтайр shows, as high treason by decades passing through the filter of private human treachery converted life of Кима Филби into unprecedented force psychological thriller.