Knock Knock
When a devoted husband and father is left home alone for the weekend, two stranded young women unexpectedly knock on his door for help. What starts out as a kind gesture results in a dangerous seduction and a deadly game of cat and mouse.
Knock Knock is marketed and generally read as a psychological/thriller with erotic elements. It features suspenseful cat-and-mouse and some violence, but horror as the film's core identity is not fundamental; removing horror would not redefine it, whereas the thriller/seduction premise remains.
Best for viewers looking for a psychological and low-gore horror movie.
Movies with a similar horror experience.