離婚跟結婚伴侶數已是一比一的現今，這對新婚夫妻，只有50％的機率會走下去… 彥君與志浩認定彼此，在熱戀下衝動領證結了婚。彥君冷靜後感到不安，原生家庭帶來的心結浮現，志浩天馬行空地提出「婚姻訂閱制」，就像訂閱Netflix一樣，期限一到，不想要的話可以取消訂閱，另一方得配合，不讓婚姻成了愛情的無期徒刑。 志浩新穎的婚戀觀紓解彥君的焦慮，更加確定彼此契合。豈料婚後磨合生活習慣、價值觀等，細心敏感的彥君被大咧咧的志浩搞得七葷八素，不禁想著，兩個人真的比一個人好嗎？難道婚姻真是愛情墳墓？即將離婚的鄰居陳家，以及離過婚而現在走開放式關係的阿原，都讓他們在一年之約中不斷檢視婚姻的意義。一年將至，這對50%夫妻會如何選擇？

Zhang Yanjun has been dating He Zhihao for one year and decides to get married and start living together. Yan Jun is prudent and attention to details, Zhi Hao, who’s totally the opposite personality. Both are facing challenges of different habits, housework, and concepts towards money. Whether it's the trivial matter of whether the toilet lid is lifted or not, Or the bigger issue about buying a house and depositing the down payment, Can set off heated disputes. There’s no small or bigger issues, everything matters. They realise when they are dating, things are easier, getting married is a different tug of war. In addition, apartment neighbors, bad friends, and best friends come to disrupt the situation. Everyone has their own opinions on marriage and love, Yanjun and Zhihao find the most suitable answer for each other from various opinions. After constant trial and error, The two work together to overcome internal and external worries, the two break through together to become the best comrades. Unexpectedly, a sweet trip exposed the huge gap between the two of them, love’s give and take have become the fuse of conflict, has close comrades become the most difficult problem? Marriage is a process of breaking through barriers and fighting over difficulties. Can they successfully get through all the challenges in their newlywed life?