Director Rian Johnson is 'diving in full force' on 'Knives Out 3.' Here's everything we know so far.

One of the most important ingredients of a whodunit is an interesting location.

"Knives Out" is set in a quirky mansion in Massachusetts, while "Glass Onion" takes place on a Greek island owned by Edward Norton's egotistical billionaire, Miles Bron.

Insider spoke to director Rian Johnson back in December 2022, and he revealed that the third sequel will be set in the US.

"I want it to be in America. There's a lot of tempting things of going to Paris or the Alps but I feel it's really important that these are American movies," said the filmmaker.

Johnson added: "Even with 'Glass Onion,' it's set overseas but it's a group of Americans who are trapped on an island together, so bringing it back to somewhere a little closer to home I think could be a good thing for the next one."

Johnson gave an update to TheWrap in October 2023, saying that he's now free to work on the movie following the end of the Writers Guild of America strike.

"It's coming along. I obviously couldn't work during the strike, and now that it's over, I'm diving in full force, and so it's coming along," said Johnson. "I've got the premise, I've got the setting, I've got what the movie is in my head. It's just a matter of writing the damn thing."

Because Johnson is still in the process of writing "Knives Out 3" after the writers' strike, there's no casting news about the inevitable list of suspects who'll be involved in whatever mystery unfolds in the sequel.

For now, the only star fans can expect to return is Craig, who is set to whip out his "Kentucky-fried Foghorn Leghorn drawl" once more.

Johnson told Variety in October 2022 that he'll keep making more movies about Benoit Blanc for as long as possible.

He said: "If each one of these can really be what Agatha Christie did, if it can be not just in a totally new location and a new cast, but also trying something exciting, I'll keep doing it as long as Daniel and I are having a good time. I'll keep making these as long as they let me."

The James Bond actor echoed the same sentiment in an interview with Deadline in November 2022.

"Rian seems to me to be very excited about getting on with the next one. He's already got some ideas, and they sound to me to be really interesting, so I'm going to let him just get on with that," said Craig.

Craig went on to say: "I mean, if people are interested, then we'll make them. But if there ever came a point where either Rian and I thought we were just churning them out, I think we would back away. I mean, I just don't think that's what either of us want to do in life. Unless people are getting genuine fun out of them, forget it."

Insider has a few suggestions for actors who should be in "Knives Out 3," like Jenna Ortega and Matt Berry.

"Knives Out 3" doesn't have a release date yet, because the writers' strike has only just ended, and Johnson has yet to finish the script.

There's also the issue of the ongoing SAG-AFTRA strike, as actors are still campaigning to get better pay and fairer conditions from major studios, networks, and streaming services in Hollywood.

Even if Johnson finishes the script quickly, there's no estimate as to when the strike will end and actors will be available to shoot the movie.