在这部回溯悬疑/惊悚片中,影片围绕着心理学家皮特与他被“鬼混”侵扰的病人之间展开，随着病情研究的深入，隐藏在恐惧背后的可怕事件也将渐渐浮出水面。
Psychologist Peter Bower's life is thrown into turmoil when he discovers a strange secret about his patients. Risking his own sanity, Peter delves into his past to uncover a terrifying secret which only he can put right. But is the reward worth risking more than a single life?
去记忆的深渊回溯，真相却未必可寻。你的记忆不一定真实。《回溯》——终极大boss原来是你！。选择与忘却。《回溯》影评。无趣的真相。回溯——Nothing haunts us like the past。寻找拯救自己的救赎之道。不要总让鬼来背锅。暴殄。
