BOO! Come and jam with us on this special ‘Spooky Edition’ of our Improv Comedy Jams! On regular Monday nights, STHH hosts an improv comedy jam at Groningen microbrewery Brouwerij Martinus. Come and enjoy a free short-form show, volunteer to join in a scene or two (or just sit back and relax), and enjoy plenty of Martinus’ delicious craft beers.