I found Intruders to be a rather confusing, and intellectually unsatisfying film. I felt it left too many questions unanswered. Or maybe I just didn't catch the answers--which could well be the case, considering I watched it in Mexico, where the Spanish scenes were not subtitled. And although I do speak some Spanish, I didn't understand all of the Spanish-language dialog in the film.
What was the origin of Hollowface, and how was he finally defeated?
My best understanding of his defeat was that by sheer will power and/or knowledge of his nature, his power to frighten was lost. Is this much accurate?