一(yī )天(👷)，609号房东花花公子(zǐ )Mum，看到一个(gè )小(xiǎo )伙在他的床上，从他们第(dì )一次见面就上床(chuáng )那天后(hòu )(😧)，神秘的事情不断发生。Mum总(zǒng )是梦见一(yī )个神秘的事件，半(🕯)夜总会被奇怪(guài )的梦突然(rán )惊醒(🕌)。Mum试(🥞)图通过和女人上床来忘记和(hé )年轻男子的“情感”。然(rán )而，这甚至让他多想(😞)想他的梦中情人。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(de )理(lǐ )论。最后，他在现实生活中遇(🏯)到了Dew。虽然他们的第一(👣)次(cì )见面是Dew的最后一(👊)天，但也(🐾)是他(😊)们两(➡)个互相帮(bāng )(⛏)助改变未来的开始！Oneday,astrangemanissleepingonMum’sbed,aplayboyandtheownerofroom609.Theybothhavepassionatesexthefirsttimetheymeetandafterthat,mysteriousthingskeephapping.Mumalwaysdreamsofamysteriouseventandwakeupfrightenedinthemiddleofthenight.Mumtriestoforgetthe"feeling"withtheyoungmanbyhavingsexwithwomen.However,itevenmakeshimthinkofthemanofhisdreammore.Then,heconnectsthedotsoftheeventsandcomesupwiththetheoryofreverseparalleluniverse.Finally,hemeetsDewinreallife.ThoughtheirfirstmeetingisDew’slastday,butalsothebeginningthatbothofthemwillhelpeachothertochangethefuture!