This movie is stupid. It is convoluted, incoherent and a waste of time to try to understand. It seems the only purpose of this "movie" is to exploit and abuse women and get away with it. I'm surprised the lead actress doesn't have shaken brain syndrome. The much larger male actor shook her violently in a way that would damage the neck and head. Seeing as how it was made in Korea, I would suspect there is no consequences for such behavior. Furthermore, I looked for her bio and found little info. I am wondering if she is over 18. I can't imagine what the purpose of this film was. I see no purpose. It was not scary, or interesting or entertaining. It was boring as the 1 star rating indicates, but mostly it was sick and twisted. The lead 2 actress also appeared physically abused and disrespected. There is no redeeming quality to this "movie". I wanted to vomit.

"Black Hollow Cage" is a senseless film that seems to have been written by someone in a bad acid trip. The plot does not make any sense and is indeed a terrible rip-off of the storyline of 1993 "12:01" or "Groundhog Day" or even "The Butterfly Effect", with a repetitive night where things go wrong. The characters are not developed and the viewer ends the movie without understanding who they are and what are their motives. The bizarre situations are not explained and there is no clue for anything that happens. Surprisingly there are IMDB users that seem to have liked this flick. My vote is two.Title (Brazil): Not Available

After watching Black Hollow Cage, aka The Dark Portal, I think it was brilliant. Never over-explained, but I understood completely, and in that understanding a powerful story told succinctly. No extra words, just eloquence and consequence. #BlackhollowcageMy Rating 10/10

Pretty good repeating time travel premise mystery that never quite gets it right.It's the old "would you kill Hitler in retrospect?" scenario, except without Hitler. Something's definitely wrong here. People have been hurt. People have died. People will die. "Black Hollow Cage" is a dark, moody, seether of a film, that bends an original linear tale with subsequent plot twists. It is clever, perhaps a bit too much for its own good.There is a father, a cold, meticulous gent. There is a daughter, a proper girl with explosive teen rages. There is a house, an architectural marvel of glassy modernity in the middle of a bush. There is an odd black box that cranks up the sci-fi angle. And there are a couple of visitors, sketchy and unsettling. Oh and a talking dog. Did I mention the talking dog? There's a talking dog.The looping begins, history is revealed, and an inevitable conflict arises. All this is played out in careful steps, brooding cinematography, and a creepy soundtrack. "Black Hollow Cage" just needs a better, tighter bow on the final present to wrap everything up, and to explain the talking dog.