But the film proceeds in such a typical and predictable horror film fashion that it becomes almost pointless. It simmers for a while, escalates to crazy and ends with cathartic revenge. The film is successful in some of the early stages; the clean and methodical approach to torturing/"civilizing" the woman together with the focus on technical appliances is downright chilling. But as both the torture and the family interactions escalate it becomes just boring, not terrifying. When the teacher finally visits, the film had already lost me for quite some time and I only thought, oh no, not that cliché too. It kept getting worse, though. The savage brutality of the ending is kinda efficient, but again completely plays within the established realms of the genre.