The psychological thriller set in 1922 on a remote lighthouse island in Canada is produced by Canada’s Screen Siren Pictures in coproduction with Jan Kallista and Jana Garajová from Slovakia’s Film Kolektiv. Elevation Pictures, Orogen Entertainment, and Protagonist Pictures are executive producers.

The government of the Slovak Republic supported the project alongside Telefilm Canada, Creative BC, Elevation Pictures, ITA Film, Hollywood Suite, the Canada Media Fund, the Harold Greenberg Fund, Film Incentive BC, and the government of Canada. The film was produced in association with Bell Media and CBC Films.

Graeme Manson (Snowpiercer ) penned the script.