Julie Kohler, a widow enveloped in grief after the murder of her husband on their wedding day, embarks on a relentless quest for vengeance. She meticulously tracks and locates the five unidentified men responsible for her husband's untimely death. Using deception and cunning, she infiltrates the lives of each man, driven by an unwavering commitment to see them suffer for taking away her happiness. Initially appearing as a mysterious and alluring figure wrapped in mourning black, she gradually reveals herself as a woman of methodical resolve. Her first target is Bliss, an affable but unsuspecting bachelor whom she charms at a party before executing her planned reprisal.

As Julie's pursuit unfolds, she employs different personas and strategies to draw near each subsequent target. Her encounters range from seduction to manipulation, all serving her singular purpose. Among her prey are a secluded artist, an established businessman, and a seemingly innocent music teacher. Each act of retribution is intricately planned and executed with cold determination. Simultaneously, the layers of her own emotions and past begin to surface, revealing the depth of her loss and haunting obsession. Alongside the unfolding mystery of her vendetta, hints of vulnerability emerge, complicating the motivations driving her actions. Her calculated journey through grief and vengeance becomes increasingly perilous, as outside forces—including the law and her own conscience—pose mounting threats to her mission. Ultimately, the path she carves leaves an indelible imprint on both pursuer and pursued, framing a tale of love twisted into revenge.