10 Horror Movie Mysteries That Should NEVER Have Been Answered

10. The End Of The World As We Know It - Knock At The Cabin (2023)

Knock at the Cabin, M. Night Shyamalan's latest nail-biter, brings together a misfit cast of characters, including Dave Bautista and Rupert Grint, for a modern day apocalypse in the making.

The self-proclaimed four horsemen of the apocalypse, Leonard (Bautista), Redmond (Grint), Sabrina (Nikki Amuka-Bird) and Adriane (Abby Quinn) take a gay couple -- Eric (Jonathan Groff) and Andrew (Ben Aldrige) -- and their daughter Wen (Kristen Cui) hostage on their holiday getaway at a cabin in the woods. So far, so typical home invasion. The four promise that if the small family do not willingly sacrifice one of their own, the world will come to an end.

On the television, they watch planes fall out of the sky, tsunamis strike across the globe and a deadly pandemic spreads like wildfire, and ultimately a mildly concussed Eric convinces Andrew to kill him, thus ending the apocalypse. But this kind of straightforward quasi-religious hoo-ha is the film's Achilles' heel. Sometimes it really is better not knowing, and Knock at the Cabin is far more interesting when we aren't sure whether the apocalypse is real or an elaborate ruse staged by four psychopaths.

Shyamalan would have done well to keep us guessing, keep everything circumstantial, and end the film just after Andrew shoots his partner dead but before we find out whether he's made a life-ruining mistake.