Horror-comedy ‘Happy Death Day’ reasonably kills it with ‘Groundhog Day’ formula

What if you could relive the worst birthday of your life again and again?
Wait, don’t answer yet. It ends with you being brutally killed, in one way or another.
Sold?
This Friday the 13th brings “Happy Death Day” — a slasher film-meets-“Groundhog Day”-meets a college rom-com.
It’s an odd mix, yet, oddly, a mostly winning one.
That’s not entirely surprising considering it comes from production company Blumhouse, which earlier this year fou