Speculative fiction is a broad umbrella category of narrative fiction referring to any fiction story that includes elements, settings and characters whose features are created out of imagination and speculation rather than based on attested reality and everyday life. That encompasses the genres of science fiction, fantasy, science fantasy, horror, alternative history, and magic realism.
Living in the same house but in different parallel dimensions, Jerold
and Gerund find out about each other from a talking cat who lives in
both worlds, and they are brought together for a bizarre adventure.