Is it so much of a stretch to think that our own trusted house plants, perhaps after watching a re-run of “Day of the Triffids” on late-night TV, should suddenly develop the ability to render their human owners blind and helpless, allowing them to feast on our bodies at will? I think not. When you think about how realistic this actually is, it's probably only a matter of time before it happens for real.
That's the thing about horror movies- the more realistic they are, the better. I find it much easier to believe in and be terrified by the possibility of a legion of house plants annihilating modern civilization in an orgy of leafy bloodletting, a kind of inverted all-you-can-eat salad buffet where the salad eats you instead of the other way around, then some of these modern horror movie plots. Guys killing college kids with butcher knives- how farfetched!