This is not a novel about a dinner party guest who locks himself in his hosts' spare room - this is an elliptical, free flowing, fast-paced, page-turning spin through the minds of the people who intersect as a result of that evening. The book is full of vivid, vital sketches of London lives, past and present, which build up and ebb away while the underlying flow drives ever onward, carrying the reader along, caught up in the cross-currents.