An important mystery has been solved.

"Sherlock Holmes 3" officially has a release date: The upcoming third installment in the Robert Downey Jr.-starring film series will hit theaters Dec. 25, 2020, according to THR. Like its predecessors, 2009's "Sherlock Holmes" and 2011's "Sherlock Holmes: A Game of Shadows," the upcoming movie stars Downey Jr. alongside Jude Law. The two play the iconic titular detective and his sidekick, Dr. Watson, respectively.

The third film has been a long time coming. The script was written by Chris Brancato and it will tell yet another story inspired by the book series by Sir Arthur Conan Doyle. So far, no director is attached. Whoever takes over behind the camera will pick up the baton from Guy Ritchie, who directed the first two movies. Meanwhile, Susan Downey, Joel Silver, and Lionel Wigram are set to produce the Warner Bros. Pictures and Village Roadshow Pictures film.

"Sherlock Holmes 3" is due out Dec. 25, 2020.

[via: THR]