By Mandi Bierly
Updated June 08, 2010 at 08:24 PM EDT

The red band trailer for the sequel to one of the self-proclaimed scariest movies of all time literally dares you to watch it. I’m a wimp, so there’s no way I’m actually going to watch a heavily-armed SWAT team and a government official enter a quarantined apartment building to try to contain a virus that has turned the occupants into “mindlessly violent, raging beasts… a demonic nightmare of biblical proportions more terrifying than they could have possibly imagined.” But it did get me wondering if a horror film has ever frightened you so badly, you couldn’t watch the sequel even if you wanted to. So this isn’t like, “I’ve never seen a singleNightmare on Elm Street,” this is “I saw the original Nightmare on Elm Street, and haven’t seen a Freddy Krueger film since.” Can a horror movie be too effective?