The success of Fifty Shades may mean we’re in for a spate of 90s-throwback erotic thrillers, this time flogging female desire. Few will be as abundantly silly as this one, in which Jennifer Lopez’s married schoolmarm learns that the gym bunny she’s strayed with is a possessive homewrecker who knows how to cut brake cables – so, you know, ladies: beware. It’s one of those innately conservative Channel 5 matinee movies with glossier production and more shots of its leading man’s sixpack, but the inevitable sass-along screenings will be a scream, and it may be your first and last opportunity to see J-Lo parsing the Iliad.