A young orphan girl, Portia, goes to live with her well-to-do aunt and uncle. As she is groomed to become a lady, she is confused by the young man who seems to be courting her. Surrounded by pretentious people who have no clue how to deal with teenagers, she soon loses her naïveté and thinks of running away.

The Dark Angel is a sensual and stylish adaptation of Uncle Silas - Sheridan le Fanu’s influential Victorian literary masterpiece. Sheltered heiress Maud Ruthyn's troubles begin when her father hires a new governess. Madame De La Rougierre (played with considerable relish by Jane Lapotaire) is a cruel, brandy-swigging schemer with an unhealthy interest in Maud's inheritance and an approach to childcare that would make Mary Poppins faint. When Maud's father dies she has no choice but to live with her wicked uncle Silas, who will inherit the family fortune if Maud should happen to die. This is not a recipe for domestic bliss and soon it seems that everyone but Maud is either bad, mad, or both.

对20年来从未堕入情网的圣西蒙勋爵来说，这是个激动人心的时刻； 来自加利福尼亚的身家百万的美艳新娘、数额巨大在嫁妆、简约而隆重的婚礼……一切都显得如此新奇、美好和幸福。 唯一令人遗憾的是，婚礼刚刚结束，新娘就彻底失踪了……