A chance encounter between the drawing master Walter Hartright and a woman dressed in white leaves him amazed because of the striking resemblance she bears to his student, Laura Fairlie.
When Sir Percival proposes to Laura, she has to overcome her love for Walter, but Percival's character gradually unfolds and exhibits dark sides. Meanwhile, Marian falls for Count Fosco.
The two girls are surprised when Sir Percival makes it clear that he eyes Laura's wealth, while Marian begins to dig deeper beneath Count Fosco's intriguing facade in an attempt to decipher his potentially sinister side.
In an attempt to bring justice to Laura, Marian and Walter are in for a shocking discovery, while Sir Percival and Count Fosco start putting their plan into action, nonchalant about the horrifying consequences that might ensue.
Laura suffers from depression, while Mrs. Catherich reveals to Walter that Laura's father promised Percival to wed him Laura in order to avoid a scandal. Professor Pesca reveals details about Fosco's past and his betrayal. The baronet tries to prevent Marian and Walter from going to the church.