If you loved The Servant, try Forbidden Quest
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 Kim Dae-woo, and they both carry the sexy mood tag, and they sit in Comedy / Romance territory. If that's the register that drew you to The Servant, the second film will land in a comparable space — through a different lens.
sexy
What Forbidden Quest is
Here's a film that's nothing if not confident in its premise. A Joseon dynasty scholar starts writing erotic novels, then promptly falls for a royal concubine. It's safe to say that things escalate from there.

