That Most Important Thing: Love (1975), directed by Andrzej Żuławski, is an intense romantic drama that explores love, sacrifice, and emotional self-destruction within the world of art and performance. Set in Paris, the film centers on a struggling actress trapped in degrading roles and a disillusioned photographer who becomes obsessively devoted to her.

As the photographer attempts to rescue the actress from professional humiliation by financing a serious stage production, his devotion turns increasingly self-sacrificial. Their relationship, marked by passion and despair, unfolds amid financial ruin, artistic ambition, and emotional instability. The actress, torn between gratitude, ambition, and love, remains unable to fully escape the forces shaping her life.

At its core, That Most Important Thing: Love is a raw meditation on the destructive nature of absolute devotion. Told with feverish intensity and emotional excess, the film portrays love not as salvation, but as a consuming force that blurs the line between generosity and self-annihilation.