After a comet releases a mysterious virus that begins to kill all of the women in the world, a young couple's relationship is severely tested. They hide out (from both the illness and the savages who hunt the remaining women) in their over-sterilized apartment. Ultimately the duo escapes their self-imposed quarantine to head to the wilderness.
A woman's panicked decision to cover up an accidental killing spins out of control when her conscience demands she return the dead man's body to his family.