Matt Dillon, Sean Young, and Max Von Sydow star in this chilling romantic thriller from writer-director James Dearden (Fatal Attraction). Troubled by the death of her twin sister Dorothy, Ellen Carlson (Young, No Way Out) unwittingly falls in love with an ambitious young man, Jonathan Corliss (Dillon, Drugstore Cowboy). As she investigates Dorothy's death, a chance encounter reveals how little Ellen really knows about her husband, and what she doesn't know may kill her in this heart-stopping suspense thriller based on Ira Levin's best-selling novel.