光石茧（绫濑遥饰）是一个心脏需要移植的女孩。一天心存绝望地独自在街头闲晃，不料却被陌生男子所搭讪，正当危险之际却被一个头发全白身上有烫伤痕迹的男子所救。茧一醒来却发现躺在自己的家中，为了答谢这份恩情，于是拿着白发男子留下的手帕沿街寻找他的下落，却发现他有个外号“王子”，而且居然在夜总会打工。 茧为了报答白发男子鸣川周平（本木雅弘饰）的恩情，于是当面向他致谢并邀请他到家里坐坐。不料周平跟茧回到家中时，却发现茧的妈妈桃子（井森美幸饰）为了茧的病被骗了两百万。总是帮助别人而牺牲自己的周平决定为桃子报仇。

在医院病床醒来的茧却发现周平已经在医院里，而周平的大学同学良介（渡部笃郎饰）告诉茧不必再担心心脏移植的问题，茧不能相信周平已经失去了意识，于是良介慢慢告诉茧有关周平跟他还有安元海（菅野美穗饰）三人之间的爱情故事

This is the tragic love story of Shuhei and Umi. Shuhei is the only surviving son of a hospital director. He loves to play the piano as accompaniment to Umi's cello. Umi is the only daughter of a couple who own a little restaurant. As she is a great cellist, Umi obtained a scholarship to attend a famous music school in Austria. While Shuhei dreams of going to Austria with her, being the sole heir in his family, he has to take up medicine to become a doctor. Ryosuke is Shuhei's best friend, but he secretly covets Umi for himself.

On graduation day, Ryosuke purposely lied to the young lovers, causing them to miss meeting each other. On her way home, Umi was knocked over by a truck, and lost the full mobility to her fingers, dashing her dream of becoming a cellist. Shuhei meanwhile, thinks that Umi had given up on him, and left for Austria.

悲しい愛の物語を通して、ピュアに生きることの難しさ、それでも希望を持って生きていく人間の勇気と強さを描いた本格的ラブストーリー。

冒頭から無残な姿で現れる主人公・鳴川周平（本木雅弘）と、その恋人・安元海（菅野美穂）の死―。

果たして、14年前に遡る2人の関係、そして、幸せの絶頂から悲劇へと向かうその道筋とは一体何だったのだろうか？