Against their better judgment, Brussels’ Tristero takes up the gauntlet – or rather, the microphone. For years, the company has made performances with a comic undertone. Now they ask themselves the question at last: what is humour, actually? Their investigation leads us to both the very first joke in history and the best joke in the world. They share their findings in all seriousness, equipped with little more than an empty stage, a microphone, and a spotlight.