D-Tox - DVD

FBI agent Jake Malloy (Sylvester Stallone) witnesses a brutal crime that brings him down to his psychological depths. Malloy becomes an alcoholic.
In order to recover, he will begin treatment at a rehabilitation clinic for police officers. But the place that is supposed to be his refuge soon turns into a terrifying prison. When a snowstorm cuts the clinic off from the outside world, several patients die under strange circumstances.
It's obvious that there's a killer inside and that anyone can be the next victim now.