Dust Bunny

Eight-year-old Aurora lives in New York City with her parents. While she is lying on the fire escape at night, a firefly draws her attention to a neighbor in unit 5B. Intrigued, she follows him to Chinatown one night and witnesses him kill a dragon – actually an armed gang in a dragon dance puppet.

Aurora warns her parents to avoid stepping on her bedroom floor, as she says this will trigger the appearance of a monster under her bed. They attempt to soothe her while setting aside her concerns, but she remains convinced and says "Goodbye" to them. That night, hiding under her blanket, she hears them being attacked and wakes up alone, finding her parents' bedroom torn apart.

Aurora steals the offering plate from a local church and attempts to use the money to hire Resident 5B to kill the monster. He finds it more likely that her parents were mistakenly killed by assassins who were looking for him, and informs his handler Laverne, who advises him to kill the child since she witnessed the killing in Chinatown, but he opts to ignore this advice. That evening, two hitmen arrive in Aurora's apartment. 5B kills one following a hand-to-hand battle; the other disappears after shooting at Aurora's unoccupied bed. In the aftermath, Aurora and 5B narrowly avoid questioning from Brenda, the child protection agent assigned to Aurora; she reveals enough for 5B to understand that Aurora's birth parents and three sets of foster parents have all disappeared.

Aurora becomes more deeply immersed in 5B's world. They bring the dismembered body of the assassin he killed to Laverne, who reveals that she hired the two assassins to remove Aurora as a loose end, being a witness to 5B's activity. They also encounter an assassin who has a contract on 5B.

The assassin and his team follow them home and converge on Aurora's apartment. Brenda returns as well, revealing that she is an FBI agent (as 5B suspected). 5B, the hitmen, and the FBI engage in a fierce firefight that ends when the monster – a giant, vicious bunny that emerges from the floor – consumes everyone except Aurora.

In the morning, 5B emerges from the floor, presumably spat out by the monster due to having applied a thumb-sucking deterrent. Laverne arrives and 5B pleads with her to not kill Aurora and to get off the floor, revealing that she is his mother. The monster re-emerges and Laverne stands her ground shooting at it before it consumes her. The monster then moves at 5B but Aurora stands between them and tells the monster "No."

5B understands that the monster is hers and tells Aurora that she can control it. Together, they leave the city to start a new life together. As they drive between fields of sunflowers, their car's shadow on the road has the form of the monster running with them.

A mid-credits scene reveals that Brenda survived by hiding in the ironing cabinet.

• Mads Mikkelsen^[6] as Resident 5B,^[7] a hitman
• Sophie Sloan as Aurora,^[2] a girl whose family was killed by a monster under the bed
• Sigourney Weaver as Laverne,^[8] the handler of Resident 5B
• Sheila Atim as Brenda^[2]
• David Dastmalchian as Conspicuously Inconspicuous Man^[9]
• Rebecca Henderson as an intimidating woman^[2]
• Line Kruse as Mother

In November 2022, it was reported that Bryan Fuller would produce and direct the "family horror film" Dust Bunny, from a script he wrote, with Mads Mikkelsen signed on in a lead role.^[6] In 2025, Fuller revealed the story was originally devised as an episode of the 2020 revival of Amazing Stories. In June 2023, Sigourney Weaver was reported to be in the cast. She told the New York Social Diary that she plays "another person who's not so nice, opposite Mikkelsen".^[8] In December 2023, it was announced that David Dastmalchian was in the film's cast.^[9]

Principal photography began in Budapest in June 2023.^[10] Since the production is not part of the Alliance of Motion Picture and Television Producers, it was granted an interim agreement to continue filming during the 2023 SAG-AFTRA strike.^[11]

Danish actress Line Kruse played the part of mother, as well as being an acting coach for Sophie Sloan.^[12]

Dust Bunny premiered at the 2025 Toronto International Film Festival in its Midnight Madness program on September 9, 2025^[13][14] and had its U.S. premiere at American Cinematheque's Beyond Fest on September 30, 2025.^[15] It was released theatrically in the United States on December 12, 2025.^[16]