在这部恋爱的温度剧情/爱情片中,看似平淡的一天，在银行工作的张英（金敏喜 饰）回到家中大哭了一场，与此同时在同一家银行工作的李东熙（李民基 饰）也在聚会中醉酒失态。原来他们是一对秘密进行办公室恋情的分手情侣，同事们都不知道他们的关系，两人虽然装作无所谓，但却在各种交集中为难对方。在一次女科长（罗美 兰 饰）为张英做媒的活动中，东熙终于忍不住嫉妒破坏了张英与男同事的相亲，从此二人的关系公之于众，也上演了各种啼笑皆非的趣事。随着两人都再次寻觅到新欢，二人也开始冰释前嫌，但由于公司的集体出游计划，新的事故又开始上演了，在搅乱了各种工作生活之后二人又重归于好，而同时女科长与男科长（崔武盛 饰）各自的婚姻关系也发生了新的变化。分手的情侣还能和好如初吗？爱情的温度在随时随地发生着变化。
Young (Kim Min-Hee) and Dong-Hee (Lee Min-Ki) work at the same bank. They secretly dated for the past 3 years, but recently decided to end their relationship. Both tell the other that they are fine, but inside they are not. Young's co-worker Son (Ra Mi-Ran) then tells her that she will introduce her to a good guy at dinner later that evening. At the bank worker's dinner get-together, Dong-Hee is also there and feels jealousy. He begins to talk negatively about Young in front of her and the man she just met. Young becomes furious at Dong-Hee and pours beer all over him. A loud confrontation takes place between the former lovers and everybody at the bank now knows they dated. Their bitter breakup turns worse when each decides to go tit for tat. Dong-Hee demands his laptop back and Young mails it back to him, but she first smashes it to several pieces. Dong-Hee responds by mailing back her belongings, including foul smelling food that is now rotten. Adding fuel to the fire, Young logs into his Facebook account and discovers that he is already seeing another girl. Can they live without each other? Can they live with each other?
有多少对情侣幸运的成为那3％。对爱情的想法。那些恋爱的点点滴滴。是真实的体温。恋爱温度100%的人适合恋爱，50%的人适合结婚。恋爱的温度，冷了又热 。可是那又怎么样呢 ，只要我们真心爱过，努力过。最后的前一幕。喜欢，是两个人在慢慢接近的温度。。常言道：分久必合，合久必分！。分手后又复合，有97%的人再分手。
