Ep 1. The Letters of Septimus Noone

Jonathan Creek season 5 episode 1, The Letters of Septimus Noone, follows the titular character as he investigates a series of mysterious letters. The episode starts with a group of friends who inherit a house from their deceased friend, Septimus Noone, a famous film editor. When they go through his belongings, they discover a series of letters that were sent to him by a woman named Rosalind Tartikoff. The letters were never answered, and the group decides to reach out to Rosalind to learn more about them.

Jonathan Creek is approached by one of the group members, a private detective, to help him solve the mystery of the letters. Jonathan is hesitant at first, but his curiosity becomes piqued as he learns more about the case. He agrees to take on the case, and he and the detective visit Rosalind, who is now an elderly woman living in a nursing home.

They learn that Rosalind and Septimus were once in love, and the letters were sent during a tumultuous time in their relationship. The letters contain clues about a secret that Septimus was keeping, and Rosalind believes that the secret is related to his work in the film industry. Jonathan starts digging deeper into Septimus' past and discovers that he was involved in a controversial film that was never released. He believes that the secret that Rosalind is referring to might be related to the film.

Jonathan and the detective begin investigating the film and discover that the footage is missing. They also discover that the film's director was murdered shortly after the film was made. The clues lead them to a film archive, where they find an edited version of the film. They also discover that Septimus was responsible for the editing and that he had made significant changes to the film without the director's consent. The changes made the film much more controversial.

The discovery of the film creates more questions than answers, and Jonathan and the detective struggle to find a connection between the film and the letters. Meanwhile, the group of friends who inherited Septimus' house start to receive strange messages, which they believe are related to the letters. They reach out to Jonathan for help, and he realizes that the messages are cryptic clues that are leading them to something important.

The episode concludes with Jonathan and the detective unraveling the mystery behind the letters and the film. The secrets and lies that they uncover are shocking, and the answers to the mystery are not what they expected.

Overall, The Letters of Septimus Noone is an engaging episode that keeps the audience guessing until the end. With its intricate plot and well-developed characters, the episode is a must-watch for fans of the show.