The Spanish are masters in these kinds of movies. In the spirit and atmosphere style like "Los Sin Nombre" and "El Orfanato", it combines drama with mystery/supernatural in a balanced and intelligent way. The story plays with the concept of is the life of a random person worth taking to save the life of a loved relative, and plays it very well. Really makes you think, if it were you, would you do it? Or would you step down at the border of selfishness?.. Definately worth watching, and thinking.
