Young Kindaichi's Casebook - Season 4

Hajime and Miyuki head to a hotel in Hakodate to help out with a case involving a threatening message against a theater company.

The red-bearded murderer is still at large. The hotel owner reveals the story behind the guest who lived in the red room.

Hajime tries to snap out of the shock of what happened to Saki as he pushes on to solve the mystery. Another person claims to be the real culprit.

The truth takes center stage as Hajime reveals that the culprit did something during the play that proves they committed the crimes. Hajime reveals that the culprit is the police superintendent. She had committed these murders because the drama troupe had played a hand in ruining her life.

Hajime and Miyuki get lost while skiing, fortunately they find a cottage in the snow. They know that the residents in the house always use computers to connect with each other.

Sojo is killed in his room. Rampo and Watson are suspected to have the motive to kill him.

Rampo is stabbed in the snow and dies after he says "Patri......" to Kindaichi and Watson. Some time later, they find a female corpse, which turns out to be Spencer.

Patricia is found poisioned in her cottage. Kindaichi discovers a murder case committed by the Computer Cottage members years ago. Agatha is revealed to be an imposter and the murderer.

Hajime and Miyuki go to a cottage in Nagano to spend their Valentine's Day. They and Aoyama, the owner of the cottage, find three members from the Kyogoku Family.

One of the Kyogoku Brothers is killed with the message of "The Angel of Death" left near his corpse. Some time later, Hajime receives a phone call from Yousuke Kyogoku. The latter wants Hajime to help him.

Hajime figures out the real killer who commits the murders in such a romantic festival.

A bank robber has committed a robbery and is trying to escape through the back door, but he happens to see Fumi walking over after getting out who accidentally sees his real face. Hajime, Miyuki and the police frantically try to find her and they succeed with help from Fumi herself after she discreetly told them where she was via riddles she gave to the robber.

One day when Hajime, Miyuki, and Fumi are at amusement park they meet four beautiful women that are also best friends. However later on, one of them is murdered in a Mirror Labyrinth that they are all in. Inspector Kenmochi arrives and Hajime learns that the other three women have perfect alibis during the murder. After investigating Hajime manages to figure out how the victim Komine was killed in the mirror labyrinth and who was responsible.

Sup. Akechi happens to meet Miyuki on a rainy day while Kindaichi is absent. He tells Miyuki about a murder case that happened on a wet day ten years ago when he came to a cottage.