Laura Percival, owner of The Stables, notices something wrong at her friend's house when out on her morning ride. Further investigation reveals scenes she'll never forget.

While the police are quick to accuse, Laura is less so, defending those around her as she struggles to make sense of the deaths. And all the time she wonders if she really knew her friends at all.

A chance encounter opens up a line of investigation that uncovers a secret life. One that Laura is much closer to than she ever realised.