Lace Crater

Lace Crater is a movie starring Lindsay Burdge, Peter Vack, and Jennifer Kim. A woman encounters a strange presence in a guest house.
Opting to sleep in the allegedly-haunted guest house while spending a weekend in the Hamptons with friends, Ruth, a lonely young woman in her mid-twenties who's had too much to drink, strikes up a conversation that leads to a sexual encounter with Michael, a burlap-draped ghost that casually appears before her. Through this inter-paranormal relation, Ruth contracts an STD with alarming effects.