Put Sylvester Stallone in a bad Friday the 13th rip-off and the result is D-Tox, another cynically exploitative return to the well of stalk-and-slash clichés that director Jim Gillespie previously trawled dry in I Know What You Did Last Summer. After failing to catch the vicious serial killer responsible for the death of his girlfriend, homicide detective Jake Malloy (Stallone) goes on an alcoholic bender and ends up in a detox programme for cops at a remote, snowbound facility in Wyoming. And, surprise, surprise, that's where the sadistic assassin is masquerading as one of the Betty Ford-style boozehounds. Derivative, nasty and just plain stupid (for starters, no one in their right mind would ever agree to be incarcerated in this mini-Alcatraz), this incompetent and obnoxious dud doesn't even have unintentional laughs to keep boredom at bay.

A disgraced FBI agent with a drinking problem joins nine other troubled law enforcement officers at an isolated detox clinic in the wilds of Wyoming. But the therapeutic sanctuary becomes a nightmarish hellhole when a major snowstorm cuts off the clinic from the outside world and enables a killer on the inside to get busy.