Prom Night (1980)

When Kim was a child, her sister Robin died in an accident at an abandoned building which was caused by four older children playing a hide and seek. In their version of the game, the person who is it is the killer. When Robin tries to join in, the older kids gang up on her, taunt her with the phrase "the killers are coming" and chase her around in a menacing way until she falls out a window to her death. Instead of getting help, the nastiest girl in the group demands an oath of silence so they don't get in trouble and they leave her there.

While it doesn't sound scary, it reminds me of times when I was a kid where my brother would follow me around at a steady gait like a zombie. At first I would laugh and tell him to knock it off. But after awhile it would scare me, which I know is as ridiculous as it sounds. It's not like he would have hurt me if he'd caught up to me, but there was something about it that would really creep me out.

Fast forward to Robin and her brother Alex looking forward to the high school prom. The four who were involved in her sister's death are her classmates and they are getting phone calls from a menacing stranger. But he's not menacing enough for them to be overly worried, although they might be if they knew he was so organized that he crosses their name off his list once he makes each call. Oooooo, isn't that scary kids?

This is one of Jamie Lee Curtis's run of horror movies in the late 1970s/early 1980s, so it has that going for it. What it has against it is an overly long disco dance prom where we get to see Kim and Nick strut their stuff on the dance floor.