Zombies do the “Thriller” dance during the 2010 Gorefest at ImprovBoston.

Gorefest boasts that every year it is “dripping with tasteless dialog and juvenile humor” as well as copious amounts of fake blood, gore and other bodily fluids, not all of which ends up on the actors. This 10th edition of the Halloween musical and comedy extravaganza, “28 Days Latte,” has writer/lyricist Don Schuerman and composer Steve Gilbane imagining how the Zombie Apocalypse plays out for a bunch of hipsters and two senior citizens trapped inside a coffee shop.

“This year’s show is the bloodiest, goriest, songiest and danciest one we’ve done yet, and that’s before you see what we plan to do to the zombie baby,” Schuerman said.

The starts Wednesday and ends on Halloween. There are 8 and 10 p.m. shows at ImprovBoston, 40 Prospect St., Central Square. Tickets are $20 to $25 (or $18 to $20 with a valid student ID) available here. For information, call (617) 576-1253.