Idea for Anthology series

In the series, you have a typical slasher coming with the head of their recent victim. But once it’s shelved in a fridge or freezer, you then get to see what they been through before the slasher. Basically a horror story within a horror story.

While you can debate that the main person in each story in the series lowkey ruins the endings, but I would to imagine that the remembrance of what eventually can be the big impact. Like the endings can be good or bad, but it can always get worse