Given the precedents in theater for bawdy LGBTQ comedy and undead-themed Halloween send-ups, it's astonishing that combining the two could result in a concoction as jaw-dropping as this two-hour-plus rock musical from Campsong Productions. A self-pitying gay DJ with an ostentatiously proud mother fends off the towel-wearing undead after regulars in an occult group cause a zombie outbreak at a Steamworks-like sauna. That setup (book by Brian Kirst) is workable fodder for good jokes, but Dan Foss's production features strangely earnest ballads and weird sung-spoken raps between overlong bits of exposition. Scott Free's music and lyrics win a special award for strange bedmates with a pro-gay, pro-Second Amendment tune featuring the refrain "I love my son / I love my gun." —Dan Jakes