10 Incredible Horror Movies You’ll Never Watch Again (And Why)

If you ever want to ruin your week, just watch Threads.

The movie - released by the BBC in 1984 - was essentially made to uncompromisingly show what would happen in the event of a nuclear apocalypse, a very real threat that haunted the minds of the public back then.

What you get from this is an unflinching, documentary-esque horror about a group of survivors in Sheffield enduring one horror after the other, as the initial nuclear explosive gives way to an ever-changing hostile world.

It's the Britishness and mundanity of the characters and setting that makes the action so harrowing though. Because this is as much an educational thing as it is a regular story, these aren't even your regular horror heroes, they're just random people - old, young, fit, ill - who endure some of the worst fates in the whole genre. There's a cold frankness to the despair that makes it even more unnerving.

I watched this thing on a hangover and let me tell you, I'll never do it again.