Polydoris and Cordelia (2016)

Best-selling horror novelist Cordelia Hudson (Ashley Sloggett) moves into a large house where a college student was brutally murdered, feeling strangely compelled to do so and thinking it will give her inspiration for a new novel. Upon moving in and discovering the victim's journal, wherein she wrote about a ghost named Polydoris haunting her dreams, Cordelia herself begins experiencing bizarre hallucinations, involving things like an "intestine" sandwich and a malevolent Ouija board.