一(yī )(🌠)天(tiān )(👷)，609号房东花花公子Mum，看(😘)到一(yī )个小(xiǎo )伙在他的(🍥)床上，从他们第一次见面就上床那天后(hòu )，神(shén )秘的事(⏬)情不(bú )(🎏)断(❣)发生(shēng )。Mum总是(shì )梦见(jiàn )一个神秘(🤷)的事(shì )件，半(bàn )(🕯)夜总会被奇怪的梦突(🏐)然(rán )惊醒。Mum试图通(😚)过和女(nǚ )人(rén )上(🚸)床(chuáng )来忘记和年轻男子(🤷)的(de )“情感”。然而，这(zhè )甚至(zhì )让他多(⏯)想想他的(❔)梦中(🦗)情人(rén )。然后(🥎)，他把(🗞)事件的点点滴滴(🙌)联系起来，提(tí )出了反(💪)向平行宇宙(🍄)的理论。最(zuì )后，他在现实生活中(⛳)遇到(dào )了Dew。虽然他们的(🕯)第一次见面(miàn )是Dew的最(🥊)后一天，但(🚗)也是他们两(liǎng )个互相帮(bāng )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!