The film does not feature any identifiable LGBTQ+ characters or themes. Its narrative focuses exclusively on the heterosexual relationship of a professor and his deceased wife, exploring themes of grief, guilt, and psychological distress.

The film focuses on a literature professor's psychological descent after his wife's death, exploring themes of grief, memory, and the supernatural. There are no identifiable transsexual characters or themes present in the narrative, nor are there any depictions related to transgender identity.

The movie does not contain any action or adventure elements.

This film is a completion of an unfinished 1967 work by Raúl Ruiz, utilizing original footage. There is no evidence of any character, established in the original material, being portrayed with a different gender in the 2020 version.

This film is a completion of an original 1967 work by Raúl Ruiz. The characters were created for this specific film and do not have a pre-existing canonical or historical race established in prior source material or installments. Therefore, no race swap occurred.