Liz Daniels should be happy about setting off on a rare family vacation. Instead, she feels uneasy about taking her kids away from home to see their grandparents. Her husband, Paul, hasn't spoken to his parents--or about them--in years, and it's a long drive to the remote farmhouse. After a day on the road, Liz decides it's time to check in to a hotel for the night. After all, everything always looks better in the morning. But when the sun comes up,...