The film adheres to the heteronormative constraints of its 1920s setting. There is no visible evidence of non-cisnormative identities or same-sex intimacy within the character arcs.

Agatha Christie serves as a powerful subversion of gender hierarchies. The story prioritizes her intellectual agency and deductive capabilities over the institutional power of male characters.

The cast is largely homogeneous, reflecting the social realities of 1926 England. The film does not introduce characters of color to disrupt the Anglo-Saxon centricity of the era.

The narrative operates within a traditional Western framework focused on logic and social order. It avoids critiquing Western institutions, focusing instead on individual justice within established contexts.

There are no prominent depictions of visible or invisible disabilities. Characters are not utilized as plot devices related to neurodivergence or physical impairment.