奶油貓悖論說「當貓從高空落下，牠一定是雙腳著地；而吐司則是塗奶油那面落地。」但若將奶油吐司綁在貓背上，而落地的名額只有一個，誰才會落地？陳子真，在交往三年的紀念日當天，被同志男友王磊放了鴿子。隨著王磊與千金許乃方的婚期越來越近，子真和王磊的關係也日趨緊繃，有一天，子真終於忍無可忍......

According to the buttered-cat paradox, cats always land on their feet while buttered toast always lands buttered side down. But if we put a piece of buttered toast on the back of a cat with the buttered side up, and only one will land, which one will that be? Chen Tzu Chen was stood up by his boyfriend Lei-Wang on their third anniversary. While the wedding day of Lei and Hsu Nai Fang is getting closer, Tzu Chen and Lei’s relationship seems to be more tense. However, Tzu Chen can't take it anymore.