The Casebook of Arne: Story, Cast and Series Facts

Story and premise

Louis Hartmann loses his father, a private detective investigating a string of murders, leaving him all alone. Rumor has it that the murders are the work of a Grave-Digger Vampire. Louis isn't keen on superstitions and vows to catch the culprit himself. That is, until a self-proclaimed detective, Arne Neuntöte, and his assistant, Lynn Reinweiß, appear. A new door is about to open for Louis…

Series details

• Title: The Casebook of Arne
• Format: Animation
• Language: Japanese
• Genres: Anime
• Premiere date: 2026-01-06
• Status in TVmaze: Running
• Network listed by TVmaze: NTV
• Network country: Japan
• Typical episode runtime: 24 minutes
• TVMaze ID: 89160
• IMDb ID: tt38798044
• TVDB ID: 456392

Seasons in the TVmaze catalogue

• Season 1: premiered 2026-01-06; final listed air date 2026-03-24.

Source and licence

Adapted from The Casebook of Arne on TVmaze. The synopsis is reproduced as plain text; catalogue facts, cast and season records are selected and reformatted. This adapted text is available under CC BY-SA 4.0, following the TVmaze API licence. Network and web-channel credits identify the service listed in this source; they do not establish current streaming availability.