By Clare Francis
"Sylvie Matheson is found dead in a river, and Hugh Wellesley, her ex-lover, stands accused of her murder, at a time when his business and his marriage are under pressure. This story of betrayal keeps the reader guessing until the dramatic denouement."
Above taken from here.
This was a great book, which does indeed keep you guessing. And because it keeps you guessing right up until the very end, it also keeps your interest right the way through.