Keep Your Windows Latched… Robert De Niro is stepping into one of Netflix’s most unsettling new thrillers — and the premise alone sounds like pure nightmare fuel.

Robert De Niro Returns to Terrify Netflix Audiences This August

There’s a chilling old playground rhyme at the heart of Netflix’s newest thriller — one that warns children to keep their windows latched, or the man with the whisper will come calling. Based on Alex North’s 2019 New York Times bestseller, The Whisper Man is set to haunt Netflix screens worldwide on August 28, 2026, and everything about it suggests audiences are in for a genuinely unsettling ride.

The Whisper Man: Cast, Release Date, Photos, Plot of Robert De Niro Movie - Netflix Tudum

A Father, a Son, and a Killer Who Shouldn’t Be Free

The story follows Tom Kennedy, a widowed crime writer trying to rebuild his life with his young son, Jake, after the sudden loss of his wife. Hoping for a fresh start, the pair move to the quiet town of Featherbank — a place with a dark and unresolved past. Two decades earlier, Featherbank was terrorized by a serial killer known only as “The Whisper Man,” who lured children from their homes by whispering to them through windows at night.

Not long after Tom and Jake settle in, a local boy vanishes under eerily familiar circumstances. The catch: the man convicted of the original Whisper Man killings has been locked away in prison for years. So who — or what — is behind the new disappearances? That question pulls Tom’s estranged father, a retired detective who helped catch the killer the first time, back into a case he thought he’d closed for good.

Adam Scott and Michelle Monaghan star in Netflix thriller 'The Whisper Man' arriving August 28 | OutKick

A Powerhouse Cast

Leading the film is Robert De Niro as Pete, the hardened ex-detective forced to reconnect with the son he’s long been distant from. Adam Scott (known to many from Severance) plays Tom, while Michelle Monaghan stars as Detective Amanda Beck, teaming up with Pete to crack the case. The ensemble is rounded out by Michael Keaton, John Carroll Lynch, Hamish Linklater, and Owen Teague — a lineup that signals Netflix is treating this adaptation as a major awards-adjacent release rather than just another streaming thriller.

The Whisper Man: Cast, Release Date, Photos, Plot of Robert De Niro Movie - Netflix Tudum

Behind the Camera

Direction comes from James Ashcroft, the New Zealand filmmaker behind the acclaimed horror films Coming Home in the Dark and The Rule of Jenny Pen, whose knack for slow-building dread makes him a fitting choice for this material. The screenplay was adapted by Ben Jacoby (The First Omen) and Chase Palmer, who co-wrote 2017’s It — so expect a script with real pedigree in the horror-thriller space.

The film is produced by AGBO, the production company founded by Anthony and Joe Russo, marking their sixth collaboration with Netflix. AGBO’s chief creative officer Angela Russo-Otstot has spoken about the excitement of continuing that partnership, a sign of how much confidence the studio has placed in this project.

The Whisper Man' Official Trailer - Adam Scott & Robert De Niro Star in Netflix Serial Killer Thriller - Bloody Disgusting

Why It’s Generating Buzz

A few things make The Whisper Man stand out ahead of its release:

  • A bestselling source material. Alex North’s novel was a critical and commercial hit upon release, praised for blending psychological horror with a genuinely emotional father-son story — not just cheap scares.
  • A rare De Niro genre outing. Seeing the Oscar-winning icon step into a grounded, atmospheric thriller alongside a strong ensemble cast is itself a draw for longtime fans.
  • Proven horror instincts behind the camera. Ashcroft’s prior work suggests this won’t lean on jump scares alone, but on mounting unease and atmosphere.
  • The mystery hook. The premise — a caught killer whose crimes are somehow repeating — gives the film a built-in puzzle that should keep viewers guessing until the end.
  • An R rating. The film carries an R rating for bloody violence, disturbing imagery, and mature themes, signaling Netflix isn’t softening the story’s edges for a broader audience.

When and Where to Watch

The Whisper Man premieres exclusively on Netflix on August 28, 2026, available to stream globally the same day. For fans of atmospheric, character-driven horror — and anyone eager to see Robert De Niro tackle a new kind of role — this is shaping up to be one of the platform’s most talked-about releases of the year.