Mientras Duermes (Jaume Balagueró, 2011)

The scenario of Sleep Tight may be straight off the shelf, with an obsessed lonely concierge creeping night after tight into a young woman's flat to carry out his fantasies as she sleeps, but the execution is far superior to most of its kin, such as the same year's tediously OTT The Resident. With Luis Tosar as the caretaker, informing us right at the start that he only finds solace in the unhappiness of others, things can only get unpleasant ere long, but the build-up is for the most part restrained and anchored in psychological credibility.

6/10