Creep 2 (2017) on Netflix

Plot summary

Sara is a video artist whose web series about eccentric Craigslist clients has been unsuccessful. She answers an online ad for video work and drives to Aaron's remote cabin in the woods. Aaron tells her that he is a serial killer and offers to spare her for one day if she films a documentary about his life. Sara does not believe him, but she accepts, hoping the recording will bring attention to her series. She is drawn to the possibility of creating shocking footage. As the day begins, Aaron attempts to frighten her, and Sara responds by going along with his strange behavior.