Forget it has William Shatner. Forget it's directed by Robert Donner. It's not a good episode. Sure, Shatner is convincing, but not captivating enough to make you overlook the tedious one-note plot, the goofy looking monster that wrecks any potential horror, or the lazy, predictable plot twist that crushes any hope of believability. The twilight zone is awesome because it thinks up so many inventive, compelling concepts. The concept of "man tries to convince others there's a monster no one else can see" is not one of them. Of all the incredible twilight zone episodes, it's a real shame this one gets so much attention.