Kindaichi Shounen no Jikenbo ~Juunenme no Shoutaijou~

Akira Kawai, a first-year student of a Fudou high-school received a mysterious letter with ominous sketch and the text saying "I'll be waiting at the Shiomisou inn.", sender or reason for sending this letter is unknown. Upon reading this himself, Hajime Kindaichi, along with Miyuki Nanase decided to check if there's more to the meaning of the letter or if it's nothing but a prank of a sort. Upon arriving at the Shiomisou inn, which was in a rather secluded and silent place surrounded by mountain on one side, and a sea on the other, he noticed there are only three more guests besides them. Could one of them be the sender of this letter? The night came swiftly and the weather turned gloomy. There and then, Hajime runs into Kengo Akechi, a detective investigating a report of a supposed seeing of a killer in the area from a 10-year old case. With approaching storm, the scream echoes through the hallway and first in the series of murders engulfs this hotel in an aura of tension. Kindaichi and Akechi are now more than ever determined to get to the bottom of this and catch the murderer behind this.

[From Mobygames]