I saw Friday at MotelX
It is being commercially promoted, i think not from the director he only wanted to make a film appealing to the most "harcore" fans of the genre, as innovator, with a new variant of zombies. With human beings alive but infected by a virus that attacks the brain, causing them to behave without being able to repress the most basic instincts of violence and sex.
It's an idea that I like as a premise for a horror film, but it's not at all new, "The Crazies" direted in 1973 by Master George A. Romero had this premise and this one in my opinion is a a much better movie, well done and with a much better script.
"The Sadness" is more violent and depraved, but the plot is very basic and then it's just gore, liters and liters of blood, sometimes well executed, sometimes not, clearly noticing the rubber.
As a fan of "hardcore" horror, i liked this rampant slaughter, but I have to be honest and admit that it's just an average movie, very well promoted, albeit wrongly, as an innovator, one of the most violent and depraved ever.
There are far better Asian zombie movies like the much-recognized "Train do Busain" or the lesser-known but high-quality Chinese saga "the way home". This one is clearly not in that league. But watch, judge for yourselves...