一天，609号房东(📼)花(huā )花公子Mum，看(😘)到一个小(🔱)伙在他(tā )的床上，从他们第(🐉)一次(cì )见面(🔬)就(jiù )上床(🐮)那(🥩)天后，神秘的(de )事情不(bú )断发生。Mum总(zǒng )是梦见一个(gè )(👑)神秘的事件(🎡)，半(🕯)夜总会被奇怪的(de )梦突(tū )然惊(🐖)醒(xǐng )。Mum试图通过(guò )和(hé )女人上(shàng )床来(🚑)忘记(jì )和年(nián )轻男子(🤷)的“情(qíng )感”。然(rán )而(🚣)，这甚(shèn )至让他多想想他的(de )(❔)梦中情人。然后，他把事件的点(✋)点(diǎn )滴滴联(🤠)系(🤸)起来，提出了反向平行(⏰)宇宙的理(🥫)论。最后，他在(🕙)现(xiàn )实生活中遇到(dào )了Dew。虽然(🧣)他们(men )的第一次见(🤘)面是Dew的最(zuì )后(🍑)一天，但也(🐾)是(shì )他们两(➡)个互相帮助改变(🥋)未来的(de )开始！Oneday,astrangemanissleepingonMum’sbed,aplayboyandtheownerofroom609.Theybothhavepassionatesexthefirsttimetheymeetandafterthat,mysteriousthingskeephapping.Mumalwaysdreamsofamysteriouseventandwakeupfrightenedinthemiddleofthenight.Mumtriestoforgetthe"feeling"withtheyoungmanbyhavingsexwithwomen.However,itevenmakeshimthinkofthemanofhisdreammore.Then,heconnectsthedotsoftheeventsandcomesupwiththetheoryofreverseparalleluniverse.Finally,hemeetsDewinreallife.ThoughtheirfirstmeetingisDew’slastday,butalsothebeginningthatbothofthemwillhelpeachothertochangethefuture!