In the page's words:

OpenAnd is your address for improv events throughout Hamburg. Whether it's genuine original improvisational theater with live music, PowerPoint karaoke in German and English or other special shows: here you can be entertained and know that the evening is guaranteed to be unique.

OpenAnd, that is: Klara Györbiro, slam poet, comedienne and improv artist Klara Györbiro, and Bene Belter, musician, comedian and improv artist.