NJ（吴念真 饰）是个很有原则的生意人，同妻子敏敏（金燕玲 饰）、女儿婷婷（李凯莉 饰）、儿子洋洋（张杨洋 饰）以及外婆住在台北某所普通公寓里。小舅子一场麻烦的婚礼过后，因为外婆突然中风昏迷，他迎来更加混乱的日子。 敏敏要在公司、家里两头跑，时常感觉自己要被耗空；婷婷一直为外婆的中风内疚，恋爱谈到中途发现自己不过是替代品；NJ更是麻烦重重，公司面临破产，他又不愿放下别人眼里一文不值的自尊。一家人里，似乎只有洋洋没有烦恼，他平静地用照相机拍着各种人的背面，帮他们长出另一双眼睛。然而，洋洋简简单单的一句话，道出了更深的悲凉……

Leonard Shelby is tracking down the man who raped and murdered his wife. The difficulty of locating his wife's killer, however, is compounded by the fact that he suffers from a rare, untreatable form of short-term memory loss. Although he can recall details of life before his accident, Leonard cannot remember what happened fifteen minutes ago, where he's going, or why.

Police officers around Tokyo are being murdered by an unknown assailant. When Ran witnesses an attempt on the life of one of her friends in the police, she loses her memory. Now, Conan and Inspector Megure must find the murderer while Ran attempts to regain her lost memories.