If you loved Caché, try The White Ribbon
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Michael Haneke, and they both carry the dread mood tag, and they sit in Drama / Mystery territory. If that's the register that drew you to Caché, the second film will land in a comparable space — through a different lens.
dread
What The White Ribbon is
Northern Germany, pre-war summer, a worn church bell tolls. A small village is beset by inexplicable events, a schoolteacher observes, children behave strangely. Haneke shoots with calculated detachment.

