The dinner scene/bar scene was filmed at the Riverview Lodge in Antioch, CA.
The scene where "Renee" was discharged from the hospital was filmed at the Antioch Police Station.
Females in jeopardy:
At the beginning, the main female character is in a bag that is dumped into water. She is able to escape, albeit ending up in a coma.
With about 26 minutes left, nurse Mariah is threatened by Randy via a beating and choking. She is able to escape and hide.
With about 7 minutes left, Jane/Renee/Veronica is grabbed by Randy/Jack and handcuffed to a bed.
With about 5 minutes left, Jane/Renee/Veronica is placed into a sack by Randy/Jack. She escapes and knocks Randy/Jack into the water.