Jessica Rothe is amusingly pithy and savvy playing a selfish college beauty, a spoiled sorority sister who rules the school until she is stabbed and killed on her way to a surprise birthday party by a masked lunatic. But fate plays this campus cutie an unusual hand once she discovers she's living her birthday over and over again, each time attempting to cheat death but always running into her attacker. Screenwriter Scott Lobdell isn't trying to sneak a slasher variant of "Groundhog Day" passed us--he's upfront about the similarities, even exalts in them, while toying with all the possibilities such a scenario can offer. It takes Rothe three tries to fully comprehend what's happening to her; once she formulates a plan (creating a suspect list), Lobdell mixes things up, so that the movie rarely feels repetitive. Our heroine, snarky to start, follows Bill Murray's example and becomes a better person on her twisted journey (reestablishing contact with her father, apologizing to her roommate, even causing her own demise on one occasion to prevent the cute nerd from the boys' dorm from losing his life). Director Christopher B. Landon deserves credit for delivering a modern-day thriller with lots of action but no gore and no nudity. If it isn't quite a family-friendly slasher flick, it certainly is a squirrelly, sassy one, with some big laughs counterbalancing the suspense. Good show! *** from ****