The story is based around "spermulites", the alien inhabitants of a dying planet. The only way they can save their planet is by sucking the men of planet earth dry of sperm, kind of like horny vampires.

Lifeforce
1985
6.2/10

The Faculty
1998
6.6/10

Voyagers
2021
6.0/10

Vampyres
1974
6.0/10

Body Snatchers
1993
6.2/10

The 5th Wave
2016
6.0/10

Alien: Romulus
2024
7.2/10

Splinter
2008
6.2/10

Shivers
1975
6.3/10

Aliens
1986
8.0/10

Crawlers
2020
5.9/10

Screamers
1995
6.3/10

Species
1995
6.0/10

Books of Blood
2020
6.2/10

Prometheus
2012
6.6/10

Alien: Covenant
2017
6.2/10

Margaux
2022
5.9/10

Die Alone
2024
6.5/10

Lust for a Vampire
1971
5.9/10

Extinction
2015
6.4/10
The Recall
2017
4.7/10