The Whisper Man (2026): Cast, Story and Release Details

Prepared by Movies Dock Editorial

The Whisper Man follows a widowed father whose young son disappears, forcing him to seek help from his estranged father, a retired detective. Their investigation reconnects the case to a serial killer from the detective’s past in this 2026 crime drama and thriller based on a novel.

The Whisper Man is a 2026 crime thriller centered on a child’s disappearance and a family forced to confront an old case. Adam Scott plays Tom Kennedy, a widowed father searching for his missing son.

The investigation brings Tom together with his estranged father, Pete Willis, a retired detective who previously captured the serial killer now connected to the case. Directed by James Ashcroft, the film is based on a novel or book and runs for 1 hour and 51 minutes.

The Whisper Man movie details

Story without spoilers

After his young son vanishes, widower Tom Kennedy turns to his estranged father, Pete Willis, for help. Pete is a retired detective whose past includes putting away a serial killer, and that earlier case becomes relevant to the new disappearance.

The premise places the story at the intersection of a missing-child investigation, a strained father-son relationship and the threat posed by a known killer. The supplied details do not reveal how the case develops or how it ends.

What to expect

The film is identified as a crime, drama and thriller, with a story built around a missing child, a serial killer and a complicated relationship between a father and son. Its premise suggests an investigation shaped as much by family history as by police experience.

The 1-hour-51-minute runtime gives the story room to balance its criminal mystery with the emotional connection between Tom and Pete. The tagline points to an atmosphere of unease involving whispers and an open door, without revealing specific plot events.

Cast and creative team

Adam Scott leads the cast as Tom Kennedy, with Robert De Niro as Pete Willis, Tom’s retired-detective father. Michelle Monaghan plays Amanda Beck, while Hamish Linklater appears as Norman Collins and Owen Teague as George.

Acston Luca Porto plays Jake Kennedy, Michael Keaton plays Frank Carter, and John Carroll Lynch is also part of the cast. Jacob Berger is credited as NJ Prison Guard, and Will Brill plays Sgt. John Dyson. James Ashcroft directs from a screenplay by Ben Jacoby and Chase Palmer.

• Adam Scott as Tom Kennedy
• Robert De Niro as Pete Willis
• Michelle Monaghan as Amanda Beck
• Hamish Linklater as Norman Collins
• Owen Teague as George
• Acston Luca Porto as Jake Kennedy
• Michael Keaton as Frank Carter
• John Carroll Lynch
• Jacob Berger as NJ Prison Guard
• Will Brill as Sgt. John Dyson

Release and production context

The Whisper Man is listed as a United States production from AGBO, with English as its spoken language. It has a release date of August 28, 2026, and a runtime of 1 hour and 51 minutes. The film is classified as Crime, Drama and Thriller, and its source details identify it as based on a novel or book.

Production companies: AGBO

The Whisper Man official trailer

Watch the official trailer on YouTube

Movies Dock view

With its missing-child premise, connection to a captured serial killer and central father-son relationship, The Whisper Man combines investigative stakes with family drama. The available information establishes the setup and principal creative team while leaving the investigation’s resolution undisclosed.

Film data:
TMDB · IMDb