This is a typical Spânish horror film in the line of IT COMES AT NIGHT, made the same year, and speaking of a very very close topic. I preferred the other one, but this movie from Spain is not bad either, and as any other horror film produced in this country, it presents kids or teens, but not in the same way as the made in US terror flicks. If you watch closely the Spanish features made since decades now, most of them show children, and this one makes no exception at all. I understand that it is not for all audiences because it needs to use some philosophical thoughts to fully get the message of the whole stuff; that I did not succeeded at. It is question of family and relationship between kids and their old man. Many links are available. Yes, it is too much complex to be accepted by most audiences. The Hollywood industry would have never made such a film, or in a different way.