A mysterious zombie virus has spread across the world, infecting both men and women. Unlike traditional zombies, infected individuals retain their intelligence, memories, consciousness, and original personalities. They know who they are and remember their former lives, but the virus fundamentally changes their desires.

The infection creates three overwhelming compulsions: , spreading the infection by turning others, and becoming pregnant. These desires gradually dominate the infected person's thoughts and instincts, regardless of their previous beliefs, lifestyles, or preferences.

Not everyone reacts the same way. Some embrace their new instincts, while others are horrified, ashamed, angry, or desperately searching for a cure. They cannot simply switch off these compulsions, even when they desperately want to return to their former selves.

Scientists are desperately researching an experimental cure, but its effectiveness and side effects remain unpredictable. Society is struggling to adapt as infections spread and ordinary people find themselves confronting unfamiliar changes in friends, family, coworkers, and strangers.