Not awful ...
... but I wouldn't watch it again.
The music is unsettling but the story is a bit disjointed. It tries to blend mental illness with the Paranormal but to me, it just doesn't work.
It would have been quite scary if they had focused on the mental side of the story alone and made more of the taxi driver's home life.
It has 3/5 π on Shudder, and I'd say that's about right. It engages you to want to know what happens next, but without really caring about any of them.
4.5/10