20 TERRIBLE Horror Movies With INSANE Endings

20. I Still Know What You Did Last Summer

I Still Know What You Did Last Summer is bad enough that it makes the mediocre-yet-iconic original seem genuinely great by comparison. 

Living down to just about every expectation of a slasher sequel released barely a year after the first, this is largely a ridiculous-in-a-bad-way retread that brings virtually nothing fresh or interesting to the table.

But what about that final twist, huh?

In the climax, we learn that the killer Fisherman is being aided by Julie James' (Jennifer Love Hewitt) college friend Will Benson (Matthew Settle). 

More to the point, there was a massive clue hidden in plain sight, given that "Will Benson" = "Will, Ben's Son," as in the son of Ben Willis (Muse Watson), the hook-wielding fisherman himself.

By any conventional metric it's a woeful twist, the sort that your six-year-old nephew might come up with while goofing around, yet it's so hilariously dumb that, in the very least, it ends the story on a charmingly campy note.