Movies and TvShows featuring "hastur" theme.

Mahiro Yasaka is just an ordinary high school student, until one day he is suddenly attacked by a dangerous monster. Just when everything seems to be lost, he is saved by a strange girl named Nyaruko, who claims to be the shape-shifting deity Nyarlathotep from horror author H. P. Lovecraft's Cthulhu Mythos.

A young boy named David discovers he has inherited supernatural powers from his grandmother. As his abilities grow stronger, he realizes that he must use them to save his family from a malevolent spell cast by a witch. With the help of his brother and a group of friends, David battles demons and ancient creatures from a book of magic. Along the way, he must also confront his own fears and doubts. Will David be able to overcome the evil and protect his loved ones?

Lead character hears rats in the walls and goes to the basement to destroy them. But he opens a mysterious door with an ancient evil named Khastur.