Based on a 1973 short story of Stephen King, the movie itself doesn't bring neither anything new and follows the pragmatic of 80% of the terror movies out there.
The issue isn't the style of Stephen King, that is more than know today, but the way you convey it on a screenplay. It simply didn't have any jump scare of of the obvious.
I expected a bit more from Rob Savage ("The Host" released in lockdown, and that I still need do see) but it wasn't this time. The actors are ok in their roles but nothing much there.
I still search to find another horror movie that innovates somehow, but it gets harder and harder. Basing the horror around a real character instead of fictional also didn't help at all, because all the logic you can make of how defeating it (that isn't so hard) is lost in the way...oh and yeah it left a little of the closet door open for a sequence.
For this one a 5,0 out of 10,0 score / C.