A wealthy family is held hostage for harboring the target of a murderous syndicate during the Purge, a 12-hour period in which any and all crime is legal. Action,Horror,Sci-Fi Well, this is either the stupidist movie ever or it's a mishmash of something audacious and creative and a slasher film with campy expectations. It doesn't make the grade as a great movie mostly because of an hour of redundant ax-wielding around a big suburban house. But the first half hour is really great—some potential here that went aground fast.