Only Murders in the Building Season 5 Dives Into a Mafia Mystery That Changes Everything

Only Murders in the Building has always thrived on its mix of eccentric comedy, heartfelt moments, and twisty whodunits. But showrunner John Hoffman says season 5 will be “very different” and based on what we know, he’s not exaggerating.

The new season drops September 9 on Hulu with the first three episodes, and this time, our favorite amateur sleuths are stepping into the dangerous world of the New York mafia.

Who Killed Lester in Only Murders in the Building Season 5?

Lester Murder - Only Murders in the Building
Lester Murder – Only Murders in the Building

Season 4 ended on a gut punch the Arconia’s beloved doorman, Lester (Teddy Coluca), was murdered. For Charles (Steve Martin), Oliver (Martin Short), and Mabel (Selena Gomez), this isn’t just another case; it’s personal.

The emotional stakes are sky-high, but the mystery deepens when Sofia Caccimelio (Téa Leoni) asks the trio to find her missing husband a man with possible mafia ties whose disappearance could be linked to Lester’s death.

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How the Mafia Changes the Stakes in Only Murders in the Building Season 5

Only Murders in the Building Season 5- Hulu
Only Murders in the Building Season 5- Hulu

In an interview with Deadline, Hoffman teased that the mafia storyline will pull “straight from the headlines,” exploring the “balance of power in New York” and the clash between the “old mob” and the “new mob.”

That means our lovable sleuths won’t just be tracking down a single killer they’ll be stepping into the crosshairs of an entire criminal network. Compared to past culprits like Jan Bellows or Poppy White, the mafia’s reach and resources make this their most dangerous investigation yet.

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New Cast Members and Who They Might Play

Only Murders in the Building Season 5- Hulu
Only Murders in the Building Season 5- Hulu

The expanded season 5 cast includes Renée Zellweger, Keegan-Michael Key, Christoph Waltz, and Logan Lerman. Hoffman hinted at “pretty colorful” characters, so it’s a safe bet some of these A-listers will be on one side of the mob divide.

If past seasons are any guide, at least one of them will be hiding something in plain sight because in Only Murders, even the most charming new face can turn out to be the one holding the knife.

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Why Season 5 Could Be the Show’s Boldest Yet

Only Murders in the Building Season 5- Hulu
Only Murders in the Building Season 5- Hulu

With its mafia plotline, season 5 isn’t just upping the danger it’s widening the scope. While the murder of Lester anchors the story in the Arconia, the ripple effects could spread across the city, testing the trio’s trust and survival instincts.

And yet, Hoffman promises the humor will stay intact. The absurdity of three quirky true-crime podcasters getting caught between two mob factions is peak Only Murders and exactly the kind of high-stakes chaos fans love.

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