Pretty Girls by Karin Slaughter

Twenty years ago Claire Scott's eldest sister, Julia, went missing. No one knew where she went - no note, no body. It was a mystery that was never solved and it tore her family apart. Now another girl has disappeared, with chilling echoes of the past. And it seems that she might not be the only one.

The Open House by Sam Carrington | ARC

Everyone’s welcome. But not everyone leaves…Nick and Amber Miller are splitting up and selling their Devon family home. When their estate agent suggests an open house event, Amber agrees, even as she worries about their gossiping neighbours attending and snooping around their home. But Amber has more to worry about than nosy neighbours. Because thirteen people enter her house that afternoon, and only twelve leave.