Carrie-Anne Moss Joins Halsey in Replacer, a Horror Film About a Signal from Beneath Montreal’s Subway

Updated

Carrie-Anne Moss at the YAGA premiere during the 2026 Toronto International Film Festival

Carrie-Anne Moss has joined Halsey in Replacer, a horror film about a radio station in Montreal that picks up a signal from somewhere beneath the subway. For Moss, it also means working on another film with Lilly Wachowski, who co-directed her as Trinity in The Matrix. Wachowski is executive producing this one.

Halsey plays Proxy, a DJ stranded in the city. She meets an artist who introduces her to his circle of friends. They run an underground radio station.

Carrie-Anne Moss
Carrie-Anne Moss, photographed by Sarah E. Freeman / Grady College, via Peabody Awards.

When the signal starts bleeding into their broadcasts, the danger is what it does to the people listening. Proxy has to get out before the sound transforms her and the friends who took her in.

Director Avan Jogia wrote the screenplay with Halsey. He calls it “bright and electric club horror,” and describes a romance at its center: Proxy has finally found a community she wants to belong to, just as staying with it puts her body at risk.

Carrie-Anne Moss
Carrie-Anne Moss, photographed by Diane Freed / Hulton Archive / Darren Eagles via Getty Images.

Alex Ridha, the electronic musician who performs as Boys Noize, is composing the score. Juliette Gariépy, who played the woman obsessed with a murder trial in Red Rooms, and Karl Glusman are also in the cast.

Moss already has a new horror series on AMC+. In Yaga she plays Katherine, a university professor in a coastal town where a young man named Henry Park has disappeared. Henry is heir to a local fishery.

The private investigator looking for him, played by Schitt’s Creek’s Noah Reid, finds Katherine among his suspects. Moss also executive-produced the eight-part series, which reworks the legend of Baba Yaga.

Replacer recently wrapped filming in Montreal. The casting announcement leaves Moss’s character a mystery, and there’s no announced U.S. release date yet.

Carrie-Anne Moss
A 1999 file photo of Carrie-Anne Moss, wearing a floral halter dress with sunglasses propped on her head. Photo by Diane Freed / Hulton Archive via Getty Images.
2026 Toronto International Film Festival - "YAGA" Premiere
At Toronto’s TIFF Lightbox on September 17, 2026, the “YAGA” premiere drew Carrie-Anne Moss to the red carpet as part of the Toronto International Film Festival. Photo by Darren Eagles / Getty Images.
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January Nelson is a writer, editor, and dreamer. She writes about astrology, games, love, relationships, and entertainment. Her favorite horror movies tend to be more on the artsy side.