Mickey Franklin was shot dead in his shower on a Saturday evening. Before long, his girlfriend - Sarah Longmore - was in custody. She had a gun and a key, and a witness placed her at the scene. Plus, she'd recently discovered that Mickey was screwing her sister: hardly a locked-room mystery, then, on the face of things. However, Sarah's case will prove to be far from straightforward, and Jack Irish's investigation far from quick and painless.