一天，609号房东(📼)花花公子(zǐ )Mum，看到一(🕸)个小伙在他的床上，从他(tā )们第一次见面就上床(chuáng )(🐮)那天后，神秘的事(⏬)情不断发(🌗)生。Mum总是梦见一个神(shén )秘的事(shì )(🛍)件，半夜总会被奇怪(🥄)的(de )梦突然(rán )惊(🐖)醒。Mum试图通过和女人上(shàng )(🚸)床来忘记和年轻(😱)男子(🤷)的(🔊)“情(qíng )感”。然而，这甚至(📯)让他多想想他的梦(💱)中情人(🎛)。然后，他把(🗞)事件的(🔝)点点滴滴联(lián )(🤠)系(xì )起(🌞)来，提出了(le )反向平行宇(yǔ )宙的理论。最(🧤)后(hòu )，他在现(xiàn )实(shí )生活(👺)中遇(yù )到了Dew。虽然他(tā )(🤖)们的(de )第(🌮)一次见面(miàn )是(shì )Dew的(de )最后一天(tiān )，但也(yě )是他们(men )两个互(hù )(🐛)相帮助改变(biàn )未来(🃏)的开(💅)始！Oneday,astrangemanissleepingonMum’sbed,aplayboyandtheownerofroom609.Theybothhavepassionatesexthefirsttimetheymeetandafterthat,mysteriousthingskeephapping.Mumalwaysdreamsofamysteriouseventandwakeupfrightenedinthemiddleofthenight.Mumtriestoforgetthe"feeling"withtheyoungmanbyhavingsexwithwomen.However,itevenmakeshimthinkofthemanofhisdreammore.Then,heconnectsthedotsoftheeventsandcomesupwiththetheoryofreverseparalleluniverse.Finally,hemeetsDewinreallife.ThoughtheirfirstmeetingisDew’(🧑)slastday,butalsothebeginningthatbothofthemwillhelpeachothertochangethefuture!