The credits end. The tune does not.
It hangs around the room like a guest who missed the hint, tapping one thin note against your ribs while you pretend the hallway is just a hallway.
Rude little thing.

A theme can be worse than a face
Monsters have edges. You can point at them, hate them, laugh at them when the makeup goes soft.
Music is harder to pin down. It can slip under a locked door, ride the low hum of your fridge, and make a plain Tuesday kitchen feel borrowed from a film you should not have watched after midnight.
I have had this happen after a cheap possession movie that did not even deserve the power. The story was thin. The acting creaked. But one three-note chant kept popping up while I brushed my teeth at 1:18 a.m., which felt deeply unfair.
But that is the trick. A weak scene can still leave a strong bruise if the sound finds a clean place to land.

Not every scary song wants to scare you
Some tracks jab. Some crawl.
And some do a meaner job by sounding almost kind, like a lullaby sung in the wrong room by someone standing just out of sight.
That is why old music boxes, soft choirs, churchy organs, and cracked children's songs keep showing up in horror. They drag safe sounds into bad light. The brain hates that mix.
So if a film leaves you jumpy, it is not silly to change the room on purpose. Put on something plain. Make tea. Send one text. Even iRethink's piece on songs that help you heal points at a simple truth: sound can steer mood, even when it cannot fix your whole day.
The best cue does not beg
Big strings are fun. I am not above them.
Still, the best horror cue often has manners. It sits low. It lets the pipe knock, the stair pop, the actor breathe through their nose, and then it moves one shade colder.
That is close to why scary sound design can do such nasty work before the plot catches up. The viewer hears the room choosing sides.
And once that happens, a normal note can become a warning. A clean piano key. A bowed cymbal. A bass tone so low you feel it before you know it is there.
Credits are bad at cleaning up
The film ends, yes.
Your body may need a minute to catch up, because it has been taking orders from drums, strings, whispers, and silence for ninety minutes.
So do not act tough for the empty room. Turn on a lamp. Play one dumb pop song if you need to. Let the horror music lose the argument slowly.