'Only Murders in the Building' season 4: Everything we know so far

Martin Short, Steve Martin and Selena Gomez in Only Murders in the Building season 2
(Image credit: Hulu)

Listen up, gumshoes, it's time to start the investigation for "Only Murders in the Building" season 4, now that season 3 has concluded. 

The Hulu series, which stars Martin Short, Steve Martin, and Selena Gomez as three true crime-obsessed amateur sleuths in an Upper West Side apartment building, first premiered in 2021 and quickly racked up critical acclaim for its comedic slant on crime fiction and those who can't get enough of it. It's also been nominated for everything from a Golden Globe to a Primetime Emmy. It's safe to say people can't get enough of this murder-ific series, so it comes as absolutely no surprise that it's already been greenlit for a fourth season.  

The show just wrapped up its biggest mystery yet in season 3 when it answered the million-dollar question: who killed Ben Glenroy? Now, it's time to look ahead to "Only Murders in the Building" season 4 to see what's in the cards for our crime-loving, mystery-solving trio. We may not have all the details just yet, but here's everything we know so far about "Only Murders in the Building" season 4. 

Only Murders in the Building season 4 release date 

There's finally a specific date for when the second season of "Only Murders in the Building" will arrive, and it's a lot sooner than you might have been thinking. It's set to debut on Hulu on August 27. If you haven't watched all of season 3 just yet, better get to it! 

This is a a relatively fast turnaround, at least as far as TV shows go. The renewal announcement only just dropped on Oct. 4, so that means we'll be joining back up with Charles, Oliver, and Mabel in under a year's time. That's practically spoiling fans, who often have to wait multiple years for continuations of some of their favorite shows.

We'll likely see season 4 continue to drop on a weekly schedule, so you can look forward to new episodes throughout fall. 

Only Murders in the Building season 4 cast

Selena Gomez, Martin Short and Steve Martin in Only Murders in the Building season 3

(Image credit: Hulu)

Hulu has not come out and directly confirmed who all will be staying and/or returning in season 4 — that will likely come much later. We do know that Paul Rudd (RIP, Ben!), Linda Emond, and Wesley Taylor won't be returning, however This is who we can likely expect to see when the show does return. 

  • Steve Martin as Charles Haden Savage, a semi-retired actor
  • Martin Short as Oliver Putnam, a Broadway director
  • Selena Gomez as Mabel Mora, an artist
  • Jane Lynch as Sazz Pataki, Charles' stunt double
  • Da'Vine Joy Randolph as Detective Williams, a police officer
  • Michael Cyril Creighton as Howard Morris, a resident of the Arconia
  • Ryan Broussard as Will Putnam, Oliver's son
  • Tina Fey as Cinda Canning, a podcast host
  • Jackie Hoffman as Uma Heller, a resident of the Arconia
  • Jason Veasey as Jonathan Bridgecroft, a resident of the Arconia

Only Murders in the Building season 4 plot and season 3 ending explained

An image indicating spoilers are ahead.

After season 3's ending, fans finally know who killed Ben Glenroy, and it might come as a shocker to some. We've got the actual rundown of what happened for you here, though obviously, be advised that there are plenty of spoilers — if you don't want to know who killed Ben, avert your eyes!

Here's one important piece of information that might change the way you view what took place: Donna (Linda Emond) and Cliff (Wesley Taylor) did have a hand in Ben's death. They didn't work together, though, and the reason why might come as a surprise!

Paul Rudd and Martin Short in Only Murders in the Building season 3

(Image credit: Hulu)

In the episode "Thirty," Mabel, Charles, and Oliver found a cookie that had been spiked with rat poison. Donna was revealed as the culprit. She wanted to protect her son Cliff's reputation and their show from a terrible review by critic Maxine (Noma Dumezweni) who criticized Ben's performance.

Donna poisoned the cookie and intentionally left it for Ben, hoping to incapacitate him. She claims, however, that she wasn't interested in killing him.

However, Ben's death didn't actually happen at the theater -- instead, it took place at the Arconia. After he got a mysterious phone call (later revealed to be from his doctor since he ate a poison cookie), Ben confronts Cliff. In a heated exchange, Cliff acts in a moment of impassioned rage and accidentally pushes Ben down an elevator shaft, leading to his tragic death.

After the trio solved the case and Cliff was carted off to be arrested, the entire cast of Oliver's play got together to celebrate. Charles' stunt double Sazz left the party to get a bottle of wine from his apartment. When she arrived, she was seemingly killed. Whether the true target was Sazz or Charles (or somebody else) remains unknown. 

Now that we've had a glimpse of season 4's first trailer, we can also surmise what's up next for the popular series. Though we've only seen a simple teaser so far, it looks like the show is set to pick back up after the end of season 3, directly after the finale. This season will explore everything that happened with Charles' friend and body double Sazz. This time, the trio will head to Hollywood, however, and head to Arconia's West Tower. There'll be a rush to figure out who was responsible for the death of their friend, which probably comes as a given, but now that we've seen it confirmed, that makes season 4 look even more interesting. 

Jane Lynch also confirmed that she will be reprising her role as Sazz, but only for a few episodes as the investigation dives into whether Charles was meant to be the target in question. With all of these important questions to answer, Mabel, Charles, and Oliver have their work cut out for them. Luckily, there's still time to get caught up so you can follow along with the episodes still fresh on your mind. It'll only be a few months until the story continues, after all. 

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Brittany Vincent

Brittany Vincent has been covering video games and tech for over 13 years for publications including Tom's Guide, MTV, Rolling Stone, CNN, Popular Science, Playboy, IGN, GamesRadar, Polygon, Kotaku, Maxim, and more. She's also appeared as a panelist at video game conventions like PAX East and PAX West and has coordinated social media for companies like CNET. When she's not writing or gaming, she's looking for the next great visual novel in the vein of Saya no Uta. You can follow her on Twitter @MolotovCupcake.