Mientras duermes

I had no idea what this film was about before I saw it, and boy was I pleasantly surprised. From the same director as REC and also set in an apartment block. This Spanish gem has a great cast, especially the lead 'Luis Tosar' who plays his part superbly, filling you with an ever increasing sense of unease and shock at what you're witnessing. It's very beautifully shot too, making the most of it's apartment block setting. By the end of the film I was left thinking "this could actually happen".

It's by far one of the creepiest, most twisted tales I've had the pleasure of watching in a long time.

Highly recommended!