A thriller set in London, in which a politician's life becomes increasingly complex as his research assistant is found dead on the London Underground and, in a seemingly unrelated incident, a teenage drug dealer is shot dead.。一个逃出精神病院的男子躲进一所空房子，新的房主母女俩搬来后，他藏在阁楼偷窥，很快被这家的女儿迷住，便假冒护士接近她……。