If you leave a door half open, soon you’ll hear the whispers spoken. That’s the official tagline for The Whisper Man, a new serial killer thriller coming to Netflix next month.

Adam Scott, Michelle Monaghan, and Robert De Niro star in The Whisper Man. Based on Alex North‘s 2019 novel of the same name, the film will stream on August 28.

Check out the official poster below and expect the trailer soon.

In the film, “When his eight-year-old son is abducted, a widowed crime writer looks to his estranged father, a retired former police detective, for help, only to discover a connection with the decades-old case of a convicted serial killer known as The Whisper Man.”

The stacked cast also includes Michael Keaton, John Carroll Lynch, Hamish Linklater, Owen Teague, Will Brill, and Acston Luca Porto.

James Ashcroft (The Rule of Jenny Pen) directs Netflix’s upcoming movie The Whisper Man from a script by Ben Jacoby (The First Omen) and Chase Palmer (IT).

Anthony Russo, Joe Russo, Angela Russo-Otstot, Michael Disco, and Kassee Whiting produce the thriller for AGBO (Everything Everywhere All at Once, Extraction).

The Whisper Man is Rated R for “some bloody violence, disturbing images, suicide, language, and brief sexual references.”