There's some good points to this one, the supporting cast are quite good and I don't mean the obvious main cast - Will Patton and his fellows would make a good sequel, the lead was also good too. It was a bit of a mixed bag but overall enjoyable, good creepy music and sound. Someone said they didn't see the 'Devil' - I though you saw too much - its a bit of a creature feature, rough around some edges but some promise there. Definitely a The Descent vibe if a fan of that.
Review of The Devil Below
