Lying is a universal language, spoken and understood by 7 billion people. none of us can evade the jinx of The Seventh Lie - Self Deception. Chauffeur Song claims to be a part-time killer. Or is he a womanizer, tries to get in the heart of his chum's wife Julianne? Julianne checks into a hotel with Song to discover his frightful plan. A sneaky Hotel Bellhop bumps into them. Could he come to Julianne's rescue? Or is he a brilliant con-artist who attempts to rip off moneyed guests of the hotel? In this hotel, he uncovers his darkest secret and comes across a Runaway Bride Gwen. The lives of these seemingly unassociated souls are interlaced together to face the appalling truth beneath their lies. 粗看是乏味，细思有港味。七个人七种谎。谎言剩宴。虎头蛇尾，第七谎言究竟是什么。摘录一段影评。回归香港电影差一步。还不如我自己做编剧。还不如我自己做编剧。想法有料，故事干瘪。看这个电影也是个谎言。 阿桑（罗仲谦 饰）受雇于好友特伦斯，表面看来，阿桑对特伦斯忠心耿耿，然而内心里，阿桑一直爱慕着好友的妻子朱莉安娜（曾佩瑜 饰），并且在机缘巧合之下获得了同她共处一室亲密接触的机会，谁知到隔天就被朱莉安娜出卖。 毕霍普（郑中基 饰）一直疑心妻子和他人有染，甚至假扮成客房服务员，偷偷追随妻子的行踪。格温（蔡颖恩 饰）即将和男友步入婚姻的殿堂，可是，就在这个节骨眼上，格温却听信预言家（林德信 饰）所言，当了一回落跑新娘，只为了寻找真爱。几个毫无关联的人，几段毫无干系的事，最终被预言家牵连到了同一点上，牵扯出了一宗年代久远的公厕谋杀案件。
