He appears to have no prior personal knowledge of them, but he is able to predict events in the house before they unfold. Craig partially recalls, with some dismay, that something awful will later occur and becomes increasingly disturbed. Dr. van Straaten (Frederick Valk), a German-accented psychologist, tries to persuade Craig that his fears are unfounded. The other guests attempt to test Craig's foresight and set him at ease, while entertaining each other with various tales of uncanny or supernatural events that they experienced or were told about. Craig says he has seen each person in his dream, but each one in a different dream.