Ten years ago, Anna, a milk delivery woman, was brutally murdered by a werewolf; the authorities ruled it a car accident, yet her daughter Lucy witnessed with her own eyes the wolf-tooth blood marks on her mother's neck. For revenge, she concealed her edge and became the docile, obedient lover of Dennis, the werewolf chieftain, silently enduring his infidelity and humiliation, while secretly dispensing wolf-suppelling potions through lipstick and a wristwatch year after year, quietly awaiting the once-in-a-decade blood moon. On the night of the blood moon, Lucy set a trap and subdued Dennis, only to discover that the true culprit was someone else. Seizing the moment, she infiltrated the werewolf stronghold, exploiting the succession conflict between Dennis and his cousin Thomas—feigning empathy, playing both sides, and provoking them into turning against each other. At the clan ceremony, the two werewolves slaughtered each other; Lucy then ambushed Thomas with a silver-steeped poisoned bracelet, finally detonated the werewolf base, laid down her weapon before her mother's grave, and brought the decade-long blood feud to a complete end.
