Generations of Montrose women - Augusta, Victoria, Willow - have lived in their quaint two-story bungalow in California for years. They keep to themselves, never venture far from home, and their collection of tinctures and spells is an unspoken bond between them. But when 17-year-old Nickie Montrose brings home a boy for the first time, their quiet lives are thrown into disarray. For the other women have been withholding a secret from Nickie that will end her relationship before it's even begun: the decades-old family curse that any person they fall in love with dies. Their surprise guest forces each woman to reckon with her own past choices and mistakes.