While on vacation, Conan gets involved in a Mystery Tour via Professor Agasa. Someone asks if Kogoro is the Night Baron, a character from Shinichi's father's novels. What is supposed to be an innocent Mystery Tour turns quickly as Conan is pushed off a balcony into a pool. Conan was pushed by the Night Baron! Yet, one more twist happens when someone else is pushed from a great height and is impaled!

Ran suspects the culprit is Satoru Maeda, the only person at the hotel capable of blocking her kick. While Conan begins to suspect this as well, his alibi is solid. Once Conan learns that the wind that blows in this time of the year is a famous one named "Himekaze" aka "Princess Wind", he figures out the murderers trick!