Edmonton's improvisers have learned from some of the city's best improv teachers and are ready to show you what they've got. Watch what happens when the city's best established and emerging improvisers put their heads together and perform. We invite you to stop by, grab a drink, invite a friend, and laugh along with us at the Grindstone Theatre! The Grindstone Comedy Theatre is a venue that is rented by independently produced shows. This show is produced by Mixtape Improv.