Corrections to the message above: Brandon Karrer replaced Chris Stone in the role of Peter, and the name of the character played by Tiya Sircar was changed from "Ely" to "Amy".

Above is a sales poster for
Thy Kingdom Come; below is a new synopsis for the movie.
On a quiet summer night, in an isolated mansion, an artist, Peter, is plagued by terrifying visions in which Heaven and Hell mingle into one dark landscape, inhabited by creatures hell-bent on precipitating the end of the world. His eyes wide shut, Peter is convinced that the creatures of his nightmares are now gathering outside his house. "If I open my eyes they'll see me," he offers. "And if they find me, we all die." Other people - patients of an ultra rational psychiatrist - seem to be haunted by visions similar to Peter's.
Are the visions just a product of their disturbed imagination, as the psychiatrist believes, or are the mysterious beings just as real as in the artist's fateful words?
As night falls, their connection to the terrifying visions brings a small group of people together, and Peter's house becomes the location of humanity's last stand.