1. The key is on her neck in the video clip, and Adrian replayed the clip many times, he must be attentive to this key. But when Fabiana found the key and put the key on her neck, Adrian didn't ask a word about the key.2. Adrian kept ignoring every doubt of Fabiana about "ghost thing in the room"3. Adrian denied the body recognize without any hesitation even he didn't check the body carefully.

One of the best thrillers I've seen. It kept me intrigued until the last minute! My heart started to beat faster and I didn't want it to end! It was unpredictable through the whole story! Very good acting, script and directing!!! Unusual story and one where you cannot even imagine what will happen next! The views were constantly shifting so you could not decide who is the one to blame! Nice images which suited to the events that were taking place. Outstanding music plays an important role in the story since it adds even more suspense. The feelings it provoked reminded me of other such good movies I had seen (spanish, too): Sleep Tight, and the unforgettable The Skin I Live In. I consider all of them a must watch!

Absolutely loved this movie. How do I know this? Because in parts I felt nauseated and slightly sick to the stomach with suspense. The desired effect I would say.I've been trying to think of another movie comparable with this one. Can't come up with it. Only one it slightly reminded me of, and I thought that would never ever happen, was the French masterpiece "L'Appartement" which had a similar mindbending way of suddenly completely changing the narrative. Maybe the later "La migliore offerta" but purely for the mystery, heartache and sheer beauty.This is what experiencing great movies is all about. Highly recommended 8/10

Something like this could rarely be made in Hollywood. The plot is actually original and brilliantly executed, unlike modern American movies. It works as a psychological thriller, mystery and horror. Spanish cinematography is one of the best in the entire world. Sure, they tend to make strange and weird movies, but it happens that I enjoy watching such films. One thinks while watching, nothing is served on a plate like in American movies, so one feels engaged while watching, not disconnected and one cares what will happen to the characters. Everything is top notch in this film. The best part is the ambiguous ending, one is left wondering how it will all resolve and how would one behave in similar situation. The movie questions one's actions and a moral compass, whether anybody in the story has one or not. This will probably be remade in Hollywood, but it won't outdo this Spanish masterpiece.