特丽莎（罗宾•莱特•潘 饰）离婚后，儿子是她的珍宝。她是一名专栏作家，为了给儿子好的生活，她工作勤劳。一天她在海边跑步的时候，捡到了一个玻璃瓶，里面竟有一封信。特丽莎深切的感受到了写信人心痛的感觉，阴差阳错之间这封信被刊登在了报纸上。读者反应热烈，为了乘胜追击，报社派出特丽莎寻找这封信的主人。 
　　写信的人名叫盖瑞（凯文•科斯特纳 饰），自从妻子凯瑟琳离世之后，他每天都活在悲伤的阴影中，用信表达自己对妻子的爱意。特丽莎还是见到了这名伤心的男子，也没有告诉盖瑞她看过他写的那些瓶中信。 
　　两人相处的过程中，特丽莎知道自己已经爱上她痴情的盖瑞，盖瑞也因为特丽莎的出现，生活多了许多生气。面对已经逝世的爱妻，与就在面前的特丽莎，盖瑞会如何选择……

The fourth love letter
Dear atherine,
My life began when I found you and I thought it had ended when I failed to save you. l thought that hanging on to your memory was keeping us both ative. But l was wrong. A woman named Theresa showed me that if I was brave enough to open my heart, 1 could love again, no matter how terrible my grief. She made me realize I was only half-alive, It scared me and it hurt. And I didn't know how much I needed her till the night she flew away. When that airplane took off, I fett something inside me tear away. And I knew I should have stopped her. I should 've followed her home. And now tomorrow, l'm going to sail to the windy point and l'm going to say goodbye to you. Then l'm going to see this woman and see if I can win her heart.If I can, I know you'II bless me.
And bless us all.If I can't, then l'm still blesse)d because l've had the pege of loving twice in my life. She gave me that. And if I teli you I love her as much as I loved you then you 'II know the whole story. Rest rn peace, my love.

第四封信
亲爱的凯瑟琳：
我的生命，因为遇到你而开始，因为无法挽留你而终结。我一直:以为，紧紧抓住对你的回忆，我们就会永远活在彼此的心中，但我错了。一个名叫泰瑞莎的女人让我明白，只要我能勇敢地打开心扉，我还可以去爱，不管我有多么悲痛。她让我明白，我并没有真正地活着。这让我很害怕也很痛苦。直到她离开的那一晚，我才知道我是多么的需要她。飞机起飞的那一刻，我的心似乎也被带走了。我知道，我应该拦住她，跟她一起回家。明天，我会驶过风之角，我来同你道别。然后，我会去找她，看能否再赢得她的芳心。如果可以，我知道你是会祝福我的，祝福我们。如果不行，我仍然感到幸福，因为我曾两次拥有真爱，是她让我懂得这一点。如果我告诉你，我深爱她，就像我深爱着你一样，你就会明白了。安息吧，我的爱人。