10 Awesome Horror Movie Villains With One Stupid Weakness

Yes, Diana of Lights Out fame is a beast who thrives in the dark, but there's an extremely simple way to counteract this villain. As in, just leave your lights on. Heck, if you're worried about your electric bill, you can always just stick to using candles to keep Diana at bay.

Don't get it wrong, David F. Sandberg's original 2013 Lights Out short and the 2016 feature-length movie are both fantastic, and Diana is a truly terrifying villain when she chooses to rear her head. It's just tough to look past that one obvious, simple weakness.

Granted, Diana is a pesky sort who doesn't always play fair - such as cutting the power of an area - but literal candlelight or the light of a mobile phone will keep you safe. Added to that, one other glaring weakness of Diana's is that she's not necessarily in control of her own fate, as she's a presence who's "tethered" to someone else. As shown at the end of Lights Out, Diana is wiped out of existence when her tether, Sophie, shoots herself and vanquishes Diana from the real world.

Now, somebody taking their own life is obviously a tad extreme, but if it means this evil spirit is banished for the greater good...