Set in a small Inuit community in the Nunavik region of northern Quebec in the 1840s, the film stars Madeline Ivalu as Ninioq, an Inuk elder isolated with her grandson Maniq (Paul-Dylan Ivalu) after most of their community perishes from smallpox transmitted by strange traders.

"Their adaptation moves the setting from northeast Greenland to northwest Ungava (Nunavik) and from the 1960s to the 1840s, when explorers and whalers began to trade with local Inuit and transmitted contagious diseases.

The story of the film happens in about 1840, some of the Inuit tribes still have never met any white people, but they hear about where they come from, what they want do and the reason.

After a good harvest of fishing, the families decide to dry what they caught on an isolated island, which are safe from dogs and other animals.

When Ningiuq and Maniq returned to the main camp, they find that everyone is dead, their bodies twisted in pain and covered with blisters.

"Before Tomorrow, a profound, elemental and hauntingly beautiful period drama that makes an intimate story of endurance into a metaphor for an entire culture.