最初知道死亡幻觉这部电影，是在听歌时，网易云音乐电台随机到了Mad world.这首歌一度成为我某一年网易云音乐的年度音乐，听了上百遍。到现在走在路上时不时还会哼起这首歌。我也不知道为什么会特别喜欢这首歌，不过我经常在挤地铁的时候，在来去匆匆的大街上发呆的时候，看着身边来来往往的人，想起这首歌。
All around me are familiar faces, Worn out places, Worn out faces.莫名感到茫然和伤感。
因为这首歌看了这部电影，其实并没有看太懂，我感觉有些故弄玄虚的内容在里面，但我很喜欢全片充盈着的那种压抑的气质，特别是结尾的时候，夜里的众生相或许更接近每个人真实的自我，那个一直高喊着love看起来正能量要溢出来的哥们哭得止不住，他的面具只有在夜里才会拿下来吧。
片尾时离线宇宙中主人工的爱人来到事故现场，问起主人公的姓名，还向主人公的妈妈打了招呼，实在是令人有说不出的滋味。不多说了，放一段视频。

All around me are familiar faces
Worn out places, worn out faces
Bright and early for their daily races
Going nowhere, going nowhere
Their tears are filling up their glasses
No expression, no expression
Hide my head, I want to drown my sorrow
No tomorrow, no tomorrow
And I find it kinda funny, I find it kinda sad
The dreams in which I’m dying are the best I’ve ever had
I find it hard to tell you, I find it hard to take
When people run in circles it’s a very very
Mad world, mad world
Children waiting for the day, they feel good
Happy birthday, happy birthday
Made to feel the way that every child should
Sit and listen, sit and listen
Went to school and I was very nervous
No one knew me, no one knew me
Hello teacher, tell me what’s my lesson
Look right through me, look right through me
And I find it kinda funny, I find it kinda sad
The dreams in which I’m dying are the best I’ve ever had
I find it hard to tell you, I find it hard to take
When people run in circles it’s a very very
Mad world, mad world
Enlarge your world
Mad world