Bullock and Kidman play sisters Sally and Gillian Owens, who have always known they were different from other people - they are witches. Raised by their aunts after their parents' death, the sisters grew up in a household that was anything but normal — their aunts fed them brownies for breakfast and taught them the uses of practical magic. But being a member of the Owens family carries a curse: The men they fall in love with are doomed to an untimely death. Now adult women with very different personalities, the quiet Sally and the fiery Gillian must use all of their powers to fight the family curse and a swarm of supernatural forces that could take away all the Owenses' lives.