Sequels, especially horror sequels, and especially especially slasher-movie sequels, are usually the first movie repeated. As much as I love 'em, the Friday the 13th and Halloween parts two through 20 are pretty much just the first movie done again, and again, and again. And, on the surface, that's what Happy Death Day 2U appears to be too. Take Happy Death Day and repeat it. It is Happy Death Day 2 after all.