Case Closed: The Crimson Love Letter, known as Detective Conan: The Crimson Love Letter (名探偵コナン からの)[1] in Japan, is a 2017 Japanese animated film directed by Kobun Shizuno and written by Takahiro Okura. It is the twenty-first installment of the Case Closed film series based on the manga series of the same name by Gosho Aoyama, following the 2016 film Case Closed: The Darkest Nightmare. The film was released in Japan on April 15, 2017.[2]
Plot
A bombing case at Nichiuri TV in autumn. The Satsuki Cup, which crowns the winner of Japan's Ogura Hyakunin Isshu based competitive karuta tournament, is currently being filmed inside the facility. The incident results in a big commotion and, while the building is burning to ashes, the only people left inside are Heiji and Kazuha. They get rescued just in time by Conan, who rushes to the scene. Both the identity and motive of the bomber are unknown.
While confusion takes over due to the explosion, Conan meets a mysterious beautiful girl who claims she is "Heiji's fiancée".