Alfred Hitchcock's 'Family Plot' does not include any explicit or implicitly identifiable LGBTQ+ characters or themes. The narrative focuses on heterosexual relationships and a suspenseful plot, therefore, it offers no portrayal of queer identities or experiences.

Alfred Hitchcock's 'Family Plot' does not feature any identifiable transsexual characters or themes. The narrative focuses on a fake psychic, a taxi driver, and a kidnapping plot, with no elements related to gender identity or transgender experiences.

The movie does not contain any action or adventure elements.

Family Plot is an adaptation of Victor Canning's novel "The Rainbird Pattern." The film does not alter the gender of any established character from the source material. All main characters retain their original genders as depicted in the novel.

The film "Family Plot" is an adaptation of Victor Canning's novel "The Rainbird Pattern." There is no indication that any character canonically established as one race in the source material was portrayed as a different race in the 1976 film adaptation.