一天，609号(🐽)房东(dōng )花花(🏽)公(gōng )子Mum，看到一个小伙(🕰)在他的床上(shàng )(🔧)，从(cóng )他们第一次(cì )见(jiàn )面(miàn )就上(🗼)床(chuáng )那天后(😧)，神秘的(de )事情不断发生。Mum总是梦见一(yī )个神(shén )(🎩)秘的事(shì )件，半夜总会被奇怪的梦突然惊醒。Mum试图通过和(hé )女人上床来忘记和(🕕)年轻男子的“情(qíng )感(gǎn )”。然而，这(🥁)甚至让他多想想(xiǎng )他的梦中(🦗)情人。然(rán )后，他把(bǎ )事(🙂)件(📙)的(de )点点(🐑)滴滴联系起来，提出了反向(xiàng )平行宇(🈴)宙的理论。最后，他在现实生(💠)活(huó )(👺)中(⛳)遇到了Dew。虽然(🧣)他(tā )们的第(dì )一次见(🤘)面是Dew的最后(hòu )一天，但(🚗)也(🐾)是(🦇)他们(men )(🈸)两(➡)个互(🐛)相帮助(zhù )改(👪)变未来的开始！Oneday,astrangemanissleepingonMum’sbed,aplayboyandtheownerofroom609.Theybothhavepassionatesexthefirsttimetheymeetandafterthat,mysteriousthingskeephapping.Mumalwaysdreamsofamysteriouseventandwakeupfrightenedinthemiddleofthenight.Mumtriestoforgetthe"feeling"withtheyoungmanbyhavingsexwithwomen.However,itevenmakeshimthinkofthemanofhisdreammore.Then,heconnectsthedotsoftheeventsandcomesupwiththetheoryofreverseparalleluniverse.Finally,hemeetsDewinreallife.ThoughtheirfirstmeetingisDew’(🧑)slastday,butalsothebeginningthatbothofthemwillhelpeachothertochangethefuture!