Valerie calls Lois for help because a trick stole all her clothes. When Lois takes her back to her own house, she is high on drugs. How did Valerie have Lois' business card or drugs if she had no clothes or purse?
When Valerie is cleaning off the gash on her stomach, there is no sign of a wound.
In the opening of the film, we see a preacher follow 2 of the girls on the street. We hear one of the girls yell "Buzz off!" but her mouth says something nastier.