This map takes place at a castle, as the name says. You start outside of it, reach the bridge, and then enter in the castle. This is regarded as one of the hardest maps for the Killer as generally, the first few traps are way more effective at killing than the last few. The traps in the first section (Trap 1-6) are much more dangerous and effective than the others in the second section (Trap 7-11), some of them are nearly useless (Trap 7 and 10).