Earth is overpopulated.
Aliens offer a deal to UN / World Council.
In return for something (unimportant?) they will humanely reduce world population by 50%, evenly across all nations, races, classes, ages etc.
For technical reasons they are unable to say exactly how - "commercial-in-confidence".
After consideration Earth Management agrees, deal is done, aliens get what they want.
The whole female population of Earth immediately ceases to exist.
Help!
Aliens offer a deal to UN / World Council.
In return for something (unimportant?) they will humanely reduce world population by 50%, evenly across all nations, races, classes, ages etc.
For technical reasons they are unable to say exactly how - "commercial-in-confidence".
After consideration Earth Management agrees, deal is done, aliens get what they want.
The whole female population of Earth immediately ceases to exist.
Help!