John Mulaney returns to his Chicago high school with David Letterman as they candidly discuss addiction, fatherhood and the state of stand-up comedy.

传奇摇滚乐队U2主音Bono与吉他手The Edge重返音乐起点都柏林，名嘴大卫·莱特曼与其展开一系列关于音乐、友谊、成长的精彩对谈。