Gregory Horror Show

Gregory Horror Show (グレゴリーホラーショー) is a Japanese 3D CGI anime television series created by Naomi Iwata and televised by the Asahi National Broadcasting Company.

Plot
Each season, a different protagonist encounters the mysterious hotel and living in it, an old mouse known as Gregory. Gregory has no physical individuality, as he denounces himself to the guest as a small part of himself. A manifestation of the guest's hidden dreams and desires that people suppress, and guests in the hotel.