When nineteen-year-old Sarah receives an invitation to a society ball from a notorious aristocratic socialite, she assumes there must have been some mistake.

What could Nico, the belle of swinging sixties London, want with Sarah, a trainee secretary with a chequered past?

Yet Nico has sniffed Sarah out for a reason.

Like Nico herself, Sarah is not-quite human – she is a wolf and a woman trapped in the same body. Bound together by their shared fate the two girls descend together into a dream-world of louche parties, country estates, Italian noblemen and increasingly animalistic instincts…

But there are choices to be made. And when Nico disappears one freezing winter, Sarah is left to make the final decision on her own.