演员张瑞希与郑锡元将在电影《事物的秘密》(导演:李英美)中饰演一对姐弟恋情侣。由毕业于英国国立电影学校的新锐导演李英美执导的《事物的秘密》这部爱情电影,以真诚而独特的视角讲述了有天一个充满魅力突然接近身边的男青年和一个三十过半的女人的故事。40-year-old Sociology professor Hye-jung falls for a 21-year-old Usang, a male student who helps her project research on women's extramarital affair. Their prohibited love and secrets are watched and told by two secretive observers. They are her copy machine and his digital camera.