Emmanuelle vs. Dracula

The name of this movie is Emmanuelle vs. Dracula released in 2004-01-01 and it's main theme is When a bachelorette party at Emmanuelle's house is interrupted by a mysterious loner, strange things begin to happen. The party guests start changing one by one into blood-sucking sexual predators with only Emmanuelle to tame the situation. Will she save her friends or will she fall under the spell of the Prince of Darkness?.