Question: How does the movie really end? Are the family trapped in a snow globe for all eternity, or were they given a second chance and Krampus is just watching them?
Question: SPOILERS: How on earth did Harge find out where Carol was on her trip in order for him to set a private detective on her trail that fast? She didn't tell him where she was going, and Abby certainly didn't. And not eight hours after Carol and Therese make love, Harge has sent a telegram to Carol in her motel room about it. How exactly was the detective *that* efficient?
Answer: The detective has likely been on Carol's tail following her for some time, not just recently.
Answer: The ending is that they are all alive and Krampus gave them a second chance. Evidence of this comes from the director's commentary and the comic book prequel "Krampus: Shadow of Saint Nicholas".