The Vineyard (1989)

A group of actors visit a winemakers estate in hopes of landing a role in his new movie.  While they all believe this weekend is a  casting call, in reality he needs blood to prevent aging.

Victims shacked in the basement and when they die are buried under about six inches of dirt.  At night, the corpses rise and attempt to get into the house.  Seems like there is a better way to handle that since his security guards are constantly fighting off the dead.

There is an overly long and confusing costume party scene where everyone dances and acts stupid.  The scene just appears out of nowhere.  Were they told to bring costumes for the weekend?  It's just weird.  One guy dresses in drag and another dresses in short shorts, muscle shirt, and a fake mustache. Creepy.

James Hong not only stars in the film, he also wrote it.  This is probably why the film features him in a sex scene.  The film also features a girl puking up spiders, a guy in a crop top, and a female character named Jezebel.  Watch for the newspaper clippings and photos in books which are obviously poorly done paste jobs.