The Spanish film La Promesa (2004) was co-written and directed by Héctor Carré. The movie stars the great Spanish actor Carmen Maura as Celia, an abused wife who leaves her home to find a new life. She comes to a small seaside town, where she saves the life of a young boy, Daniel, played by Santiago Barón. The boy's mother, Dorita (the lovely Ana Fernández), hires Celia to be housemaid and nanny. Dorita's handsome husband, Roberto (Juan Margallo) senses that something isn't quite right about Celia, but accepts her as an employee anyway.
From that point things begin to go wrong. We learn that Dorita feels abandoned by Roberto, who ignores her in favor of his law practice. (She is not a showpiece wife, because their elegant house was a gift from her father. Apparently the money comes from Dorita's side of the family. In essence, Roberto is a showpiece husband.)
Daniel loves Celia, but he can be difficult and oppositional. We learn that Celia is fanatically religious, and she is horrified when a crucifix in a church crumbles before her eyes. (The priest tells her it was just worm-eaten wood, but Celia isn't convinced.)
What follows is basically a horror film. However, there are no crazed stalkers or slashers anywhere. There is horror, but it's internal. The atmosphere in the movie is consistently grim and laden with foreboding. You know something bad is going to happen, but you don't know what. You'll have to see the film to know how the movie ends.
Actually, the plot really ends about five minutes before the movie ends. The last five minutes of the film is an upbeat fantasy, probably tacked on to keep the producers happy. Still, the movie is worth seeing if you don't mind depressing films. We saw La Promesa on DVD, and it worked well on the small screen.
Carmen Maura is one of the great actors of our time. Even if this type of movie isn't really your normal fare, I recommend seeing it just to watch a truly gifted professional at work.