《网络杀机》，英文名是Untraceable，其它中文别称：觅踪、无影无踪、网路杀机、Live杀人网站。该片由格里高利·霍布里特导演执导，戴安·琳恩、比利·伯克、科林·汉克斯、约瑟夫·克罗斯、Mary Beth Hurt等人联合主演，发行公司是美国湖畔娱乐，于2008年1月25日在美国上映。该片讲述的是一个变态杀手兼电脑天才的故事。在FBI中，有一个专门负责处理和网络有关的犯罪的部门。他们平时的工作就是在办公室浏览网页，追踪不法行为的来源。詹妮弗·马什就是这个部门的一员。她是一个单亲母亲，为了生活，她在家庭与工作中寻找平衡，她有一个很好的搭档叫做格里芬·陶德，她们关注到一个网站，网站上挂着一个被兽夹困住的小猫的视频，只要网友们点击得越多，小猫死得越快。于是她们两人想方设法去追查网站的来源，可证据都指向了他们自己的办公室。后来视频的主角由小猫变成了人，詹妮弗为了挽救无辜的生命，为了将这个变态绳之以法，她们两开启了追查
"Network Murder", the English name is Untraceable, other Chinese nicknames: Mitrace, Wu Ying Wu Trace, Internet Murder, Live Killing Website. The film is directed by Gregory Hobright and co-stars Diane Lane, Billy Burke, Colin Hanks, Joseph Cross, Mary Beth Hurt and others. The distribution company is American Lakeside Entertainment, released in the United States on January 25, 2008. The film tells the story of a perverted killer and computer genius. Within the FBI, there is a division that deals specifically with cyber-related crimes. Their usual job is to browse the web in the office and track down the source of wrongdoing. Jennifer Marsh is part of this department. She is a single mother. In order to make a living, she finds a balance between family and work. She has a good partner named Griffin Todd. As long as the netizens click more on the video of the kitten, the faster the kitten will die. So the two of them tried every means to trace the source of the website, but the evidence all pointed to their own office. Later, the protagonist of the video changed from a kitten to a human being. In order to save innocent lives and bring this pervert to justice, Jennifer started the investigation
扣人心弦的网络犯罪故事，引人入胜。《网络杀机》以网络犯罪为题材，通过一个复杂的情节和令人意想不到的剧情发展，成功地营造了一种紧张刺激的氛围。电影中探索了网络世界的黑暗面，并展示了主角在追踪犯罪线索时面临的种种危险和挑战，让观众随着剧情的推进陷入其中。
演员们出色的表演令角色栩栩如生。戴安·琳恩、比利·伯克、科林·汉克斯和约瑟夫·克罗斯等主演在电影中的精湛表演为角色赋予了生命力。他们通过真实而饱满的演技，成功地诠释了角色的复杂性和情感层次，使观众对他们的命运产生共鸣和关注。
导演巧妙的叙事和紧张的节奏抓住观众的注意力。格里高利·霍布里特的执导手法独特而精准，他通过紧凑的叙事和紧张的节奏，有效地抓住观众的注意力。电影中的悬念设置和情节推进都恰到好处，让观众一直处于紧张和期待之中，无法预测故事的发展方向。
