
Episodes

1. Those Who Dig Pits for Others Will Fall In Themselves
7 Jan 2026 · 23 min · 7.0/10
Louis Hartmann joins forces with the members of the Arne Detective Agency to investigate his father's murder.

2. There Is Always Sunshine After the Rain
14 Jan 2026 · 22 min · 6.0/10
Lynn remembers the time she first met Arne and hired him to help investigate her father's suspicious behavior.

3. Misfortune Never Visits Alone
21 Jan 2026 · 23 min · 6.5/10
Arne makes a shocking discovery about Lynn's father and Gordon reveals the dark truth of the Reinweiß mansion.

4. Those Who Never Gamble Never Win
28 Jan 2026 · 22 min · 5.0/10
Lynn and Arne are both troubled by surprise encounters that threaten to alter the course of the investigation.

5. One Swallow Does Not a Summer Make!
4 Feb 2026 · 22 min · 4.0/10
Lynn and Arne assemble the servants to review the clues and sniff out the killers through deductive reasoning.

6. Time Will Tell
11 Feb 2026 · 22 min · 4.0/10
A distraught mermaid arrives at the detective agency searching for the reason why her lover tried to kill her.

7. Eating Whets the Appetite
18 Feb 2026 · 22 min · 3.5/10
Arne tracks down a jewel thief while Lynn investigates a series of disappearances connected to an art museum.

8. Desire and Love Make All Burdens Lighter
25 Feb 2026 · 22 min · 5.0/10
Lynn and Arne trace the mysteries of the missing men and lost piece of jewelry to their shocking conclusions.

9. Not All That Glitters Is Gold
4 Mar 2026 · 22 min · 6.0/10
Arne and Lynn are asked to investigate a man who appears to have started cheating on his wife after an injury.

10. Different Countries, Different Customs
11 Mar 2026 · 22 min · 5.0/10
Arne decides to investigate a locked-room murder on a whim and soon realizes that it may not be what it seems.

11. Birds of a Feather Flock Together
18 Mar 2026 · 22 min · 6.0/10
Arne uncovers a disturbing connection between all five of the cases investigated by the Arne Detective Agency.

12. All's Well That Ends Well
25 Mar 2026 · 22 min · 6.0/10
Lynn and friends battle their way through Dracula's soldiers as they race to rescue Arne before it's too late.
The Case Book of Arne Season 1: quick answers
How many episodes are in The Case Book of Arne Season 1?
Season 1 of The Case Book of Arne has 12 episodes, about 4 hours in total.
When did The Case Book of Arne Season 1 come out?
Season 1 premiered on 7 Jan 2026.