The Woman in White (1997) is a BBC television adaptation based on the 1859 novel of the same name by Wilkie Collins.
They both live in Limmeridge with their uncle, Mr. Fairlie (Ian Richardson), who hires a new tutor, Walter Hartright (Andrew Lincoln).
Marian tells Hartright that she and Laura are very close, agree in everything and refuse to be taught separately.
When Hartright meets the two sisters, he mistakes Laura for the woman in white because of the strong resemblance.
However, Marian makes it clear to him that her sister is already engaged to Sir Percival Glyde.
After Marian threatens to leave, Laura asks her sister to stay and soon reveals the terrible truth.
Marian believes her and tells Laura to lock Sir Percival out of her room at night.
Before dinner, Laura is pressured into signing a document, but Glyde refuses to let her read it.
Fosco, realizing that he must appear to be on her side, tells Glyde to stop trying to force her to sign it.
Marian and Laura try to escape to Limmeridge, but their plans are foiled by Glyde's servant Baxter, who shoots at them as they sprint toward the roads.
When she returns to her room, she locks the door and sleeps under her bed while telling herself to wake up before breakfast to warn Laura.
She wakes up and Mr. Gilmore informs her that Anne has been placed in an asylum and Laura has committed suicide by jumping off the tower.
She finds help in a drunken Mr. Hartright who after losing his honor because of the false accusation of the servant Margaret, now makes a living by doing cheap portrait sketches.
When he refuses to reveal Anne's whereabouts, Marian threatens to tell his clients in the waiting room that he made improper advances to her.
Suddenly, Glyde appears out of hiding, knocks out Hartright and sets the papers on fire.
Back at Limmeridge, the sisters' uncle Fairlie makes a public announcement that Mr. Hartright was falsely accused.