Learning To Make Fire (1970)

Mallory has been wading in the depths of grief while their partner, Cybil, has been holding down the fort for the two of them. After expressing gratitude to Cybil over dinner one evening, Mallory embarks on a midnight journey into the darkness of their loss. The couples' home transforms into an unfamiliar and terrifying space in which Mallory has to confront their darkest fears head on. In the end, they discover that grief can take on many forms.