As others have pointed out, this is a retitled earlier novel. I cannot understand why the publisher has retitled it, but as it has, it should have made it obvious on the cover that this has been done. This publisher is not alone in this bad habit (eg a recent Camilla Lackberg), which is quite common when publishers change and reissue a backlist (as is currently being done for Liza Marklund). But it is extremely poor customer relations.
Shame/Sacrifice is very good by the way - not quite as compelling as her other novels Missing, Shadow and Betrayal, but a very good suspense novel nonetheless.