Entombed (2020)

In the near future civilization has collapsed, and Seamus is on a desperate run. Dangers loom everywhere. By accident, he comes across a subterranean shelter and decides to entrench himself there. He is however not alone. Konrad and his wife Mila, who is in a coma, also hide in there. But things are not the way they appear to be. Gradually it turns out that life in the underground shelter may be even more dangerous than that on the surface.