One extra star for the photography, which has some remarkable shots.
The rest is a truly horrific experience. The acting achieves the remarkable feat of being even worse than the plot. Even with so little story, the baffling screenplay has holes bigger than the sense of dread that gradually settles in as you realise the mistake you made in choosing this movie to watch.
The actor for the main role was probably cast for his shining skills in making all the other actors feel better about themselves. His most expressive shot is the last one, in which he is mercifully silent and his face is mostly covered...
I did appreciate how they tried to keep the violence off screen, as it saved us from seeing more of those special effects. On this note, some credit is due: the vape does look menacing.
One more positive note, it is a short movie. At least you won't be wasting 2 hours on it.