Keep Them Close by David Ellis

From the bestselling author of Look Closer comes a new domestic thriller about betrayal and murder inside one twisted family.
Two siblings. One murder. So many lies.
Siblings Allison and Luke have been through a lot together. They’ve always stood by each other. They’d do anything for each other.

Or so it seems.
When Allison’s husband, Finley, is murdered, the investigation threatens to expose the siblings’ darkest secrets. An illicit affair. A decades-old accident. A stunning deception. How do these events explain Finley’s death? How far will Allison and Luke go to keep their secrets buried? And can the siblings even trust one another anymore?

As the investigation winds tighter and past and present collide, the most shocking betrayal might lie a little too close to home…