老实的青年吴聚财（谢贤）不得已用假枪抢劫，抢着了同样贫穷的同学周日清（胡枫）。周日清诡计多端，两人同当经纪人，结成难兄难弟，生意渐渐好起来。他们共同追求家庭教师邓秀莹（南红），邓秀莹的未婚夫在南洋要来港治病。她为了借钱给未婚夫治病，险些被老板侮辱。后来邓秀莹的未婚夫因病去逝。未婚夫的妹妹徐琳（江雪）来香港发展。周日清与邓秀莹，吴聚财与徐琳感情日好，结为连理，共同打造“兄弟商店”。

故事讲述野鸟一次又一次被捕鸟人抓住、贩卖、放生，在有限的自由里挣扎求存。女人在男人主导的社会中求生，不由自主的命运同样可怜。自小跟着阿嬷在山林长大，常常看鸟儿飞翔、被抓、被放生、死亡，直至一天母亲接他到城市的公寓同住。在局促不安的城市中与母亲相依为命，但母亲也不过是一只渴求爱却受尽伤害的野鸟。为了生活，她当上伺候男人的「酒店妹」；为了爱情，她承受暴力遍体鳞伤。山林的氤氲困住飞鸟，城市的哀号囚禁灵魂。自由只是假象，世界终究是个更大的囚笼，母子也不过求片刻安身。

故事以池袋为舞台，讲述了澪虽然很在意青梅竹马的新，但却无法将自己的心情传达给他。某天和新吵架的澪为了和好在去他身边的途中遭遇了交通事故。当澪恢复意识的时候，那是一个从未见过的不可思议的世界…

Driving home late at night during a heavy rainstorm, Glen experiences car trouble. Near where his car gets stuck, he spots a house, knocks on the door and is greeted by an oddly friendly middle-aged man, Arthur, and his younger wife, Cyndi. The strange couple pours him a drink, and then more drinks, followed by an unexpected offer that Glen can’t refuse. Elsewhere, a young woman, Katie, is feeling emotionally weighed down by a secret romantic arrangement that feels like a textbook case of gaslighting. And at the same time, in a nondescript research facility, medical professional Julie begins questioning her role in a bizarre experiment, fearing that she’s doing more harm than good.