Apple TV is set to air a television series based on two novels by the Swedish pseudonymous writing team known as Lars Kepler. These books are actually the work of Alexandra Coelho Ahndoril and Alexander Ahndoril, who write under the shared name Lars Kepler. The series, titled Nocturne, is an adaptation of the novels Lazare and Le Somnambule, which are part of a larger story series called the Joona Linna saga. These books were originally published in France by the publishing house Actes Sud. Lazare was translated into English by Lena Grumbach, and Le Somnambule was translated by Marianne Ségol. The series will consist of 10 episodes and will feature a cast including Liev Schreiber, Zazie Beetz, and Stephen Graham. It was developed, written, and produced by showrunner John Hlavin, and created, written, and produced by Rowan Joffe. The original authors, Alexandra Coelho Ahndoril and Alexander Ahndoril, are listed as executive producers alongside Øystein Karlsen, David Rysdahl, Dorothy Fortenberry, and Niclas Salomonsson. Nocturne is expected to bring the Joona Linna saga to a wider audience, combining elements of psychological drama and mystery. The series has been in development for several years, with the original novels gaining a following for their complex characters and suspenseful plots. The adaptation promises to maintain the tone and depth of the source material while expanding it for television. The series is scheduled to begin broadcasting on October 30. This date marks the start of what is expected to be a significant addition to Apple TV's lineup of original content. Fans of the Joona Linna books and followers of the Lars Kepler pseudonym are eagerly anticipating the release, hoping for a faithful and compelling adaptation of the original works.