Richard Osmond's girlfriend Rebeca has disappeared. During his search, he finds an old book in a library containing the image of a woman named Cristina Collins — dead for a long time, wearing period clothing — who is identical to Rebeca in every physical detail. Following the clues he has gathered, Richard arrives at a beautiful mansion that turns out to be inhabited by spirits. He must help those spirits find peace and uncover the mansion's buried secrets, which are connected in a way he does not yet understand to the reason Rebeca disappeared.