Someone wrote exactly what I think on the reviews, but as he wrote spoilers I'll do the no-spoiler version.
So, the movie has potential, has an interesting story, good cinematography and a good bunch of cool old actors playing the veteran cops teaching the rookie their stories in a poker night.
So far it's OK, but as we see the rookie being so stupid all the time, even if it was the point at some level, he'll fall into every teenager horror movie cliche situation you can think of and never learn.
At least me, not interested in watching a movie whit the main character being that lame.
A few other plot holes and things (a patched wound over a shirt was so funny) add up to the stupidity of situations through the whole movie, you'll be eye-rolling a lot here. The movie has quite a lot of dark humour and doesn't pretend to be too serious, but this silliness is just lazy writing.
It's not awful, but don't expect too much form it.
Review of Poker Night
