Lisa Frankenstein shares a universe with another Diablo Cody-penned horror film, Jennifer's Body. The two films have plenty of thematic similarities, exploring young women who come into their own during supernatural and gory circumstances. Although they take place in different parts of the same world, from the 1980s Illinois suburbs of Lisa Frankenstein to a more modern take on Minnesota, they highlight the challenges faced by their young female protagonists in a world where supernatural elements can help them fight back. The idea that both films are connected to a larger universe makes sense on a thematic level, at least.

https://screenrant.com/jennifers-body-lisa-frankenstein-movie-universe-connections-explained/