The premise is simple: Somebody shouts out a made-up teen-slasher movie title and the three members of Blood Squad spend an hour acting it out. The Squad doesn't use stage blood or props, which is smart—small theater cannot summon anything worse than the gore in our imaginations. It also helps that the show starts late with a mostly tipsy audience and the actors stealing sips from their backstage beer stash. (Odd Duck Studio, 1214 10th Ave, 800-838-3006. 10:30 pm, $10.)