It is a shock people are still living in the Arconia considering how many deaths it has seen in the past few years. The building could easily be repurposed as a haunted house or a Spirit Halloween by now. But this is New York, and tenants here know how to suck it up through the worst conditions for a good deal. So that must be the only explanation: The Arconia rent must be so cheap (and stabilized!) for the residents to stay put season after season—including this next one.

With a fourth season of Only Murders in the Building on the way, yet another murder has taken place in Charles, Mable, and Oliver’s Upper West Side apartment complex. Here’s what we know.

Has Only Murders been renewed for season 4?

Yes! Hulu announced the renewal on October 3, the morning of the season 3 finale. “The trio’s journey is far from over,” the series announced on social media.

Another renewal comes with no surprise, as Only Murders in the Building has received a slew of nominations in the past year year, like Emmys, Golden Globes, and Critics Choice Awards.

Who will be in the cast?

Going off of Hulu’s announcement, our lead trio is set to return: Steve Martin (Charles), Martin Short (Oliver), and Selena Gomez (Mabel).

Meryl Streep is coming back, too. Deadline reports the Oscar winner will reprise her role as Loretta Durkin, though further details still remain under wraps.

However, the rest of the cast is still unconfirmed. It’s likely we’ll see some favorites, like Da’Vine Joy Randolph (Detective Williams), Michael Cyril Creighton (Howard), Ryan Broussard (Will Putnam), Tina Fey (Cinda Canning), Jackie Hoffman (Uma), Jason Veasey (Jonathan).

We’d love to see this past season’s guest stars, like Paul Rudd, and even Matthew Broderick, return for more, but that’s also still unclear.

As for newcomers, Variety reports that Eva Longoria and Molly Shannon have been cast for season 4. Details on Longoria’s character remain under wraps, but Shannon is said to portray a “high powered Los Angeles businesswoman who finds herself drawn into the world of the investigation in New York.”

Eugene Levy will also star in a recurring role for season 4, according to Variety. Details about his role remain secret. And according to The Wrap, Kumail Nanjiani is also joining the cast in an “integral’ recurring role, but it’s still under wraps.

Three more cast members were announced in April, according to Deadline, including You’re The Worst‘s Desmin Borges, A24 star Siena Werber, and newcomer Lilian Rebelo.

What will season 4 be about?

The season 3 finale sets up the next whodunnit: At the opening night celebration of Oliver’s musical, Charles’ body double Sazz Pataki (Jane Lynch) swings by Charles’ apartment to pick up another bottle of wine when they run low on booze. However, upon arrival, she is seemingly shot through the window. (A close-up shows a bullet hole through the glass.) Sazz falls to the ground bleeding and dies in Charles’ kitchen. In season 4, the group will surely have to solve not only who killed Sazz, but also whether Charles was the real target and why.

There could be some development for the characters’ personal lives too. Mabel and Oliver’s love interests, Tobert and Loretta, move to L.A. for work with the chance of them going long distance. Partners don’t stay for long on Only Murders, but we won’t rule out the possible return of these two (plus Charles’ ex-fiancée Joy) in season 4.

Where will season 4 take place?

Charles, Oliver, and Mabel will bid adieu to The Arconia and Manhattan as a whole for a change of scenery in L.A. Disney Television Group President Craig Erwich told Deadline:

“Well, I’m very excited to see Steve, Martin and Selena take a little break from the apartment building and come to Los Angeles. So in the same way that John Hoffman used the canvas of Broadway to tell what I think was one of the most unique seasons you’ve ever seen, the same unique Only Murders take will be applied to Los Angeles, which I’m really excited about.”

When will production start on season 4?

On March 1, the series’ Instagram account shared pictures from the set, so it appears that production is underway. In the short carousel of photos, Selena Gomez, Steve Martin, and Martin Short are seated on chairs on the street, where it appears to be a bit chilly.

The caption read, “The besties are back. Season 4.”

The next day they shared a video clip of the crew, which included Meryl Streep.