"Poison" is a 1991 film directed by Todd Haynes that is divided into three interconnected stories, each of which explores different aspects of queer experience. The first story, "Hero," is a contemporary retelling of the myth of Narcissus and Echo, and explores the relationship between self-obsession and societal rejection of queer identity. The second story, "Horror," is a parody of the 1950s B-movie genre, and critiques societal fears and prejudices about queer people. The third story, "Homo," is a post-apocalyptic science fiction story that portrays a society where same-sex desire is the norm, and critiques the idea of a "normal" sexuality.

The film's script is a non-linear narrative structure, which further disrupts traditional storytelling and emphasizes the fluidity of queer identity. The film jumps back and forth between the three stories, and it's characters sometimes appear in different stories, creating a sense of continuity and a deeper exploration of the themes. The script also employs a wide range of film styles and motifs, from the melodrama of "Hero" to the horror of "Horror" and the science fiction of "Homo", this allows the film to explore different facets of queer identity and experience.

Overall, the construction of the script in "Poison" is heavily influenced by queer narratology, which emphasizes the subversion of traditional narrative conventions and the exploration of queer themes and experiences. The film's non-linear structure, diverse film styles and motifs and the interconnection of the different stories, all contribute to its powerful exploration of queer identity and societal attitudes towards it.