My co-workers recently saw “Happy Death Day;” and, I must say, I was more than pleasantly surprised. Okay, the truth is that the minute I saw the preview, I couldn’t help but anticipate its release. I shared the synopsis and the trailer with everyone I could think of. There was something special about it. I guess it gave me such a jolt because the premise was new for a horror movie in the slasher sub-genre (my favorite of the horror films). Finally! A co-ed wakes up the morning of her birthday only to…