The Kappa is a water demon from ancient folklore ... giant salamander Just as British children have been brought up with scary stories about the Loch Ness Monster, Japanese people know all about ...

And Pablo is a great director, and we both had a mutual love for horror movies. So I feel like we were able to sort of figure out how the Kappa would think and how to act it out. And it worked ...

The scary Kappa that lives inside the boy makes every moment feel like a race against time, which adds to the tension.