Gregory Horror Show is a tV short anime that premiered in fall 1999, produced by Milky Cartoon.

About the production: the story comes from an original script, there are 25 episodes of about 2 minutes and its current status is "finished".

Its main genres are comedy, horror, mystery and supernatural, with themes such as Survival, POV, Inn and Full CGI.

On AniList, Gregory Horror Show has an average score of 62%, an average score, and appears on 1,820 users' lists.

The franchise continues in or follows from: Gregory Horror Show: The Second Guest.

The first series is a set of 25 stories about a male businessman arriving at the hotel after taking a train home from work. He encounters the mysterious owner of the hotel, an old mouse known as Gregory, who suggests that he stay a while. Soon, the man becomes drawn into a bizarre series of events taking place within Gregory House as he tries desperately to escape from this bizarre purgatory. (Source: Wikipedia)

Official synopsis from AniList.