The 13th Vow On the 13th, artist Ray marries Bella, defying superstition with cold logic. But in the shadows of the gallery, his daughter Ivy feels invisible. Consumed by jealousy, Ivy poisons the bride’s wine with a mysterious green vial from her father’s lab. What was meant to make Bella "sick" triggers a nightmare no one can calculate. A world where mathematical madness and dark transformations collide. One wedding. One poison. A logic that bleeds into dreams.