An excellent book. Bizot, a Frenchman, was taken prisoner by the Khmer Rouge in 1971 and released after three months. That makes him the only westerner to be captured by the Khmer Rouge who was subsequently released.
The first half of the book details this three month ordeal. The camp in which he was held captive was run by the infamous Dutch (or Doutch), well known for being in charge, a few years later, of S-21, the notorious prison in Phnom Penh during the Khmer Rouge's short rule of Cambodia.
After Bizot was released in 1971, he stayed in Cambodia, researching Buddhism, as he did before his capture, and was still in the country when in 1975 the Khmer Rouge rolled into Phnom Penh. Bizot became the negotiator, or middle man, for the French diplomatic mission when dealing with the Khmer Rouge's provisionary government.
This is detailed in the second half of the book.
Originally written in French, the text suffers a bit from an odd translation here and there, most notably the use of English words which are not very common, but the highly personal style against the backdrop of the Khmer Rouge's atrocities works extremely well.
One couple, stuck at the French embassy with Bizot in 1975, have a daughter who's name is Vinca.