I think it's reasonable to say that we tend to have a pretty complicated relationship with the night. While we might find that it's the most peaceful part of our day when we're staying in or the most fun when we're going out, there's also something about it that can easily unsettle us.
Not only that, but the difference between a night that feels comfortable and atmospheric and one that feels like danger could be lurking around every corner often comes down to a nebulous vibe that we can't really explain. Sure, going into a park at night is a terrible idea, but even our own backyards can feel totally different even if nothing's changed about them.
So even though the feelings we develop when the vibe isn't right aren't easy to put into words, we can certainly recognize them when a picture brings them out in us. And whether they actually take place at night or not, these ones fit that chilling bill.