Liang Jing Hao and Song Rui En fell in love despite their social difference. Soon, they were engaged to be married. However, their happy union was shattered when he discovered that her philanthropic father was the driver who killed his mother in a hit and run years ago and the cause of his father's suicide on their wedding day. The devastated Jing Hao chose to disappear rather than exposing the crime committed by Run En's father. When he resurfaced years later Rui En had to choose either moving on with her life as he did with his or fighting for his forgiveness and saving their love. 我喜欢红线，爱无限，∞这种温暖俗气又简单的剧情。。。因为有你 所以无限有爱。每个人都有小故事，这是我的。虐到不能再虐的半部好剧。爱无限。冲着张榕容看的。日剧红线。爱无限，爱无线，唉无限。爱无限。最开始觉得张榕容真差，又丑，看到后面觉得她婷耐看的，演的也不错。 故事发生在我国台湾。性格开朗的梁景皓（潘玮珀 饰）是体育系学生，俊朗的外表吸引不少女生注意，可家境的困窘让他无暇顾及谈恋爱，光为父亲（梁福城 饰）筹措医疗费已经让他焦头烂额。一天，在闹市摆地摊的景皓为躲避清场的警察，逃跑中勾坏了富家女宋瑞恩（张榕容 饰）的裙子，为赔偿衣裙他搭上了近来所挣费用。作事另类的瑞恩没有想到，就在她与景皓为裙子纠缠之时，一个人待在家的景皓父亲酿成了火灾。知道真相后瑞恩非常自责，她努力想接近景皓以弥补自己的过失，但都以徒劳告终。后来，因为一根意外的“红线”拉近了俩人距离，但彼此的内心仿佛还阻挡着什么。不久后，就在二人准备踏上红毯时，景皓发现了惊天的秘密......
