Ithaqa by Michael Watson and Theresa Chiechi.

In Ithaqa a filmmaker/conman discovers the horrible Eldritch Truth of the cosmos as a moving picture he’s struggling to produce in the 1920’s goes horribly wrong.

Ithaqa is a comedy turned Lovecraftian horror story that will appeal to readers who enjoyed Cabin In The Woods, but thought it would be copacetic if it had been set during the roaring 20’s.