Village of the Damned

The scene is the English village of Midwich. The scientist Gordon Zellaby is having a telephone conversation. Mid-sentence he passes out. At the same moment, every single person and animal in town has passed out just as suddenly; some unknown force has put all the inhabitants of Midwich to sleep. When the army gets involved, they find this force has precise boundaries. One soldier, after being lassoed around the waist, walks past the boundary, loses consciousness and immediately revives when his fellows pull him out of the infected area. A few hours later, this strange force disappears and everyone wakes up. The mystery remains unsolved for weeks, but it has a sequel. All Midwich women of childbearing age are unaccountably pregnant. And the glowing-eyed children they have will prove to be worse than what they could have feared. —IMDb