Combine weirdo standups and an honest-to-badass live slasher movie made up in front of your eyes by improv supergroup Blood Squad, and what do you get? SOMETHING A BRITISH MAN WOULD LOVE SAYING. Also an extreme run-on sentence. Visit www.weekoffun.com for more info. (Market Theater, 1428 Post Alley, 587-2414, 8:30 pm, $10, all ages)