赛斯是一位天使，凡人看不到天使，只有将死的人才能看到他们。而天使的任务就是带走他们的灵魂。一天，赛斯出现在洛杉矶一家医院的手术间，医生正在极力抢救病人，但最终赛斯还是带走了他。手术期间，赛斯感受到了主刀女医生玛姬的注视，那目光里的坚定和执着深深震撼了赛斯，他已经被玛姬吸引住了。玛姬因为手术失败而无比自责，感到绝望无力。这期间赛斯一直默默地陪在玛姬身边，尽管玛姬感受不到他的存在。

赛斯爱上了玛姬，这个美丽善良而自信的女医生。他多么希望玛姬能注意到他，多么希望能够碰触玛姬（天使是没有触觉的），并走进她的生活。凡人看不见天使，除非天使自愿现身。所以赛斯冒险在玛姬面前现身了。玛姬只见了赛斯一面，就再也忘不了了。她被赛斯英俊的外表和忧郁迷人的气质吸引。

These things'll kill you.

Are there others? Others like you?

Yeah, they're out there.

You see them, but most of the time you just walk on by.

Nobody likes to think of the old life. You know, what they gave up.

Then why'd you do it?

My daughter, Ruth...her stupid husband, Frank...and my grandkids.

Petie's 4, Hannah's 6.

And this is my wife, Teresa.

Did you...tell her who you were?

I started to try once or twice.

Then I thought, Why do that to her?

Do what?

It's too much for them.

People don't believe in us anymore.

Do they still gather together at sunrise?

And sunset, yes.

Take me there?

Can you hear it?

No.

I can't hear that. But you can't feel this!

Nathan! You have to go back.

Not until I catch the big wave.

Wait. Wait.

Wait for what?

Swim!