In Muntinlupa City, Philippines, 2025. On a rainy midnight, from her office building, Chevalyn Luna learns of another murder. The news reveals a pattern too precise to be coincidence: every two years, on March 13, a former classmate is killed. The cycle has already claimed three lives. She is certain she won’t be next, after all, no one held a grudge against her and by the pattern, the next killing is still two years away. Later that night, she spots the only other figure on the street, her former class president, Andrea White.