In more than a dozen years spent reviewing shows at the Edinburgh Festival Fringe, the world’s largest arts festival, I struggle to remember laughing quite so much as I did at Identities, a 1-hour comedy staged by Close to Home Productions, which developed its play in partnership with women who have had breast cancer. Although tales of cancer are nothing new at the Fringe—during which acts from 58 countries will stage 51 446 performances of 3317 shows in 262 venues over 3 weeks in Edinburgh, UK—Identities was like a breath of fresh air, delivering genuinely funny jokes that flowed naturally and were not forced, yet without skimping on the emotional side of a cancer diagnosis and treatment.