Andrey Iskanov's Visions of Suffering (Final Director's Cut)

After losing his girlfriend because of his obsession with necrophilia, death and a morbid fascination for decomposing human bodies, Sasha falls into despair. He suffers dreadful nightmares where he is wandering a dead otherworldly forest filled with fog and strange creatures. He happens to disturb a demonic shaman, which results in outlandish beings which start moving into our world, and strange voices are heard on his telephone line. A phone repairman comes to help with the faulty lines, but the old man is not what he seems; he's a phone-wizard and knows more than the average man about dreams, nightmares and the creatures that inhabit the other world with no shapes...