What are the motifs in Rebecca by Daphne du Maurier?

One of Daphne du Maurier's greatest achievements in this novel is to convince readers of the innocence of the murderer and the guilt of the murder victim. There are several reasons why, according to the novel's moral structure, Rebecca deserved to die. For one thing, she was cruel and a liar: as Maxim explains it, "They all believed in her down here, they all admired her, they never knew how she laughed at them behind their backs, jeered at them, mimicked them."