FBI agent Alice Black is on the hunt for a mysterious and calculating female serial killer. Both walk their own paths toward justice, and as their lives start to intertwine, the line between right and wrong begins to blur.

When a chance encounter brings together the cynical Dell and the quick-witted Kimberly, the stage is set for a tempestuous love affair that unfolds like a puzzle. As the film zigzags back and forth in time — from a meteor shower in LA, to an encounter in a Paris hotel room, to a fateful phone call — an unforgettable portrait of a relationship emerges.