一天，609号(🐽)房东花花公子(🍩)Mum，看(😘)到一个小伙在(zài )他的床上，从(cóng )他们第一(🛤)次见面(miàn )就上(🗼)床(🐮)那(nà )天(💤)后(😧)，神秘的(de )事(shì )情不(bú )(🎏)断(duàn )发生。Mum总是梦见一(🔸)个神秘的事件，半夜总(zǒng )(🙍)会被(bèi )奇怪(🥄)的梦(mèng )突(tū )然(🚥)惊醒。Mum试(shì )图(tú )通(tōng )过(🍮)和(hé )女人上(shàng )床来忘记(🥀)和年轻(qīng )男子的“情感”。然而(ér )(🚣)，这甚(🌚)至(zhì )让他多想想他的梦中情人(🎛)。然后，他把(🗞)事件的点点滴滴联系(🤸)起来，提(👓)出了反向平行(háng )宇宙(🍄)的理(🥫)论。最(zuì )后，他在现实生活(👺)中遇到了Dew。虽然他们的第一次见面是Dew的最后(hòu )(🍑)一天，但也是他(tā )们两个互相帮(bāng )助改(gǎi )变(🥋)未来的(🌪)开(kāi )始！Oneday,astrangemanissleepingonMum’sbed,aplayboyandtheownerofroom609.Theybothhavepassionatesexthefirsttimetheymeetandafterthat,mysteriousthingskeephapping.Mumalwaysdreamsofamysteriouseventandwakeupfrightenedinthemiddleofthenight.Mumtriestoforgetthe"feeling"withtheyoungmanbyhavingsexwithwomen.However,itevenmakeshimthinkofthemanofhisdreammore.Then,heconnectsthedotsoftheeventsandcomesupwiththetheoryofreverseparalleluniverse.Finally,hemeetsDewinreallife.ThoughtheirfirstmeetingisDew’slastday,butalsothebeginningthatbothofthemwillhelpeachothertochangethefuture!