Marcus Caldwell and English widower and Muslim convert, lives in an old perfume factory in the shadow of the Tora Bora mountains in Afghanistan. Lara, a Russian woman, arrives at his home one day in search of her brother, a Soviet soldier who disappeared in the area many years previously and who may have known Marcus's daughter. In the days that follow, further people arrive there, each seeking someone or something. The stories and histories that unfold, interweaving and overlapping, span nearly a quarter of a century and tell of the terrible afflictions that have plagued Afghanistan as well of the love that can blossom during war and conflict.