Kashiopea no Endo Roru A murder takes place on a luxury overnight train which runs from Sapporo to Ueno, Tokyo. The victim is a film director. The suspects are 4 women. Nokosareta Senritsu After a pianist concludes her best performance to date, she dies mysteriously in the waiting room. The cause of her death is potassium cyanide that was laced in her coffee. Kuroi Pan Teru A man works as a supervisor for a construction company. 30 years ago, he was a popular actor who played a hero character on TV. Now, he has a wife and a 20-year-old daughter. One day, the man learns that his daughter is kidnapped. Daiyamondo Dasuto A cold wave hits Tokyo. Two men, working for the same company, are unable to avoid overtime work that night. The snow storm then causes electrical outages. The two men must face difficult life or death decisions.
Unfortunately the movie This Mystery is Excellent! ~ Challenge from Bestseller Writer is not yet available on HBO Max.
| Directing | Kentaro Otani | Director |
| Writing | Yuko Nagata | Writer |
| Writing | Takeru Kaidô | Novel |
| Directing | Takeshi Furusawa | Director |
| Directing | Mamoru Hoshi | Director |
| Writing | Shichiri Nakayama | Novel |
| Writing | Maki Takahashi | Writer |
| Writing | Tadashi Anjo | Novel |
| Writing | Rokurô Inui | Novel |
| Writing | Mamoru Hoshi | Writer |
| Writing | Mako Watanabe | Writer |
