本片讲述独自生活的美食专栏撰稿人谷文通（辛柏青 饰），偶然间认识了同样一个人的摄影师欧阳文慧（黄尧 饰），两个孤独的灵魂相互陪伴，一起徘徊在人来人往的北京街头，寻找内心的归宿。一次偶然的机会，谷文通得知了欧阳文慧的隐痛往事，又发现了自己父亲（田壮壮 饰）失联四十多年的真相，让他的生活有了新的变化……

前知名经纪人余美凤（毛舜筠 饰），曾一手捧红多位歌手，却在婚后选择相夫教子。看似婚姻美满的她，在17岁儿子升学之际，断然决定复出乐坛。机缘巧合之下认识了茶餐厅外卖员方晴（姜涛 饰），方晴内心对唱歌跳舞充满热诚也相当有天赋。让美凤重新燃起了做经纪人的希望，正式出道后。方晴大火，美凤也在职场上锋芒毕露，儿子子轩（柳应廷 饰）感到妈妈的转变，再加上父亲的突然搬走，让他心里更是不安，母子感情也因此备受考验。与此同时，方晴接到海外公司邀约，请他到海外发展。而方晴的唯一条件是美凤必须跟随……美凤也在儿子与方晴之间面临抉择。

阿七（张智霖 饰）回来了，他是令黑道胆寒的专职杀手，幼年时阿七曾经亲眼目睹父亲被手下小弟发哥杀死，但十七岁出道以来，阿七视自己为黑道的兵器，一直未向发哥复仇。这次，阿七接到陌生雇主的任务，击杀发哥的新任女友，电光火石之间，阿七将发哥击伤，带其女友跳海逃生。走投无路的阿七奔赴台湾，投奔陷入高利贷自身难保的好友小鬼（张达明 饰），小鬼此时正为槟榔妹志玲（尹馨 饰）魂牵梦绕，并不惜杀人为后者赎身。而阿七的出现，令本来就看不起小鬼的志玲对他愈发残忍。小鬼热血上涌，与阿七完成任务，但之后等待他们的，却是兄弟情的岌岌可危……

Shipwreck survivors are found on Beiru Island (Infanto tô), which was previously used for atomic tests. The interior is amazingly free of radiation effects, and they believe that they were protected by a special juice that was given to them by the island's residents. A joint expedition of Rolisican and Japanese scientists explores Beiru and discovers many curious things, including two women only one foot (30 centimeters) high. Unscrupulous expedition leader Clark Nelson abducts the women and puts them in a vaudeville show. But their sweet singing contains a telepathic cry for help to Mothra, a gigantic moth that is worshiped as a deity by the island people. The giant monster heeds the call of the women and heads to Tokyo, wreaking destruction in its path.