10 Worst Motives In Slasher Horror Movies

10. Magic Black Goo Made Them Do It - Black Christmas (2019)

There's no getting around it - 2019's Black Christmas remake is just godawful. 

While ditching the series' original killer Billy was by no means a fatal flaw, and the film's focus on frat culture misogyny absolutely had potential, it ultimately got way too silly for its own good.

It's eventually revealed that the series of killings happening on campus have been caused by the bust of the university's founder, Calvin Hawthorne, which leaks a magic black goo that allows Hawthorne's spirit to possess anyone who touches it. Right.

In turn, Hawthorne commands the frat boys who come in contact with the goo to kill any female students who get "out of line."

This was just a goofy, lunk-headed way to amp up the original 1974 film's existing feminist themes, and left many rolling their eyes at how on-the-nose and ridiculous it was. 

Women fending off a misogynist frat cult that wants to subjugate them? Cool, but bringing in the black goo from Prometheus totally out of nowhere? Nah.