(SIRIUS 6B, Year 2078) On a distant mining planet ravaged by a decade of war, scientists have created the perfect weapon: a blade-wielding, self-replicating race of killing devices known as Screamers designed for one purpose only — to hunt down and destroy all enemy life forms.

In 1994 South Korea, a female North Korean spy integrates herself as a housekeeper for U.S. military officer to steal classified documents, but soon worries about her cover when she falls for the teenage son of the officer.