HPL is a huge influence on The Endless Whispers. Both Chris Jones, the screenwriter, and Michael Babbitt, the director, would place it at the top of the list (or at the very least tied for the top of the list.)
Read: Providence
Here’s one of his poems that Michael says, “the dark atmosphere that pervades it seeps into the bones, slowly. It’s a macabre snapshot of a town that is more ‘wasting disease’ than ‘punch in the gut.’ That’s the sort of fear we’re hoping to conjure with The Endless Whispers.”