讲述了虹猫是个小发明(🐽)家，近来因(yīn )为沉重的(🃏)课业压力(lì )每晚(🔱)都(dōu )做噩梦，虹猫决心与蓝(lán )兔(tù )(🛤)一(🌰)起合(🔬)作发明一(🥩)台噩梦去除器。实验中噩梦去除(📼)器(qì )因程(chéng )(🖲)序紊(wěn )(🐿)乱出现(xiàn )故(gù )(🎩)障，竟意外将(🕯)虹猫和蓝兔(tù )卷进了梦之国。在这里，美梦(🗑)精灵和噩梦精灵为了(le )争(🥀)夺(🕕)有(🤯)限(😱)的人类梦(💞)境资(zī )源，一直处在竞争状(zhuàng )态。随(😞)着(🖲)人类的(💱)烦心事(🎛)逐年增(🥎)多，噩梦(mèng )精灵占据(jù )了(le )上(🙌)风。虹(hóng )猫和蓝兔(🙀)加(🙉)入(rù )了美梦精灵，解决(jué )了很(hěn )多人做恶梦的问题，并(bìng )逐渐化(🥕)解了(🐀)美梦精灵与(yǔ )噩(è )梦精灵之间的矛(máo )盾，最(zuì )终(zhōng )返回(huí )人间…