“Assassin X” (** out of four) was a slick but empty Redbox action thriller about an aging assassin (Olivier Gruner) who is double-crossed by his sinister boss (Patrick Kilpatrick) when he falls in love with his target (Stephanie Gerard) and refuses to kill her leading to them both having to take it on the run to stay alive. Wall-to-wall music soon becomes grating and nearly drowns out the dialogue in some scenes although it’s no loss. Stylish direction and cinematography are plusses and Gruner’s charisma compensates to some extent. ’90’s star Richard Grieco pops up in a meaningless supporting role and Martin Kove picks up a few bucks as one of Grunier’s nemesises.