Conservatively paced but always compelling, this Spanish suspense film (2014) takes so many psychological left turns that after a while it begins to feel like a vortex. A single father, wrestling with the news that his 12-year-old daughter has leukemia, resolves to buy her an expensive dress she covets, and following a random sexual encounter with a married woman, he embarks on a blackmail scheme to get the money. Writer-director Carlos Vermut distinguishes himself with his willingness to court melodrama; the layers of perversion, betrayal, and revenge verge on the operatic, but the action is played with impressive sobriety. In Spanish with subtitles.