An '80s Nightmare Ball: It's Requiem vs. That '80s Club with costume contest, door prizes, dancing and live entertainment by DJ Skeletal and DJ X-Bot; 21 and older only. Mon., Oct. 31, 10 p.m.-2:30 a.m., $6. Velvet, 1301 Washington Ave, St. Louis, 314-241-8178, www.velvetvibes.com.
All Hallow's Eve: Kid-friendly Halloween activities including face painting, balloon artists and palm reading, with free candy and age-appropriate ghost stories. Sun., Oct. 30, 1-4 p.m., free. Missouri History Museum, Lindell Blvd & DeBaliviere Ave (Forest Park), St. Louis, 314-746-4599, www.mohistory.org.
American Liver Foundation Halloween Costume Bash: Tim Gilbert of KLOU Oldies (103.3-FM) hosts this Halloween party, with costume contests, live music by Jackson Hill and That '80s Band and special guest stars; proceeds benefit the American Liver Foundation of Missouri. Thu., Oct. 27, 6-11 p.m., $25, call 314-352-7377 for tickets, www.liverfoundation .org/missouri. Ameristar Casino's Bottleneck Blues Bar, St. Charles Landing, St. Charles, 636-940-4300.
And Away You Go: Interactive murder-mystery with four-course dinner & wine. Fridays, Saturdays, 7 p.m.; Sundays, 2 p.m. Continues through Oct. 30, $34.95-$39.95. Bissell Mansion Restaurant & Dinner Theatre, 4426 Randall Place, St. Louis, 314-533-9830, www.bissellmansiontheatre.com.
Animated Dead, Harkonin and Deaden: Three wicked metal bands crush your skull in honor of Halloween. Sun., Oct. 30, 8 p.m., free. Three-1-Three, 20 Mascoutah Ave, Belleville, IL, 618-239-6885.
Antoinette's Bare Bones Tour: This trolley tour doesn't involve dinner, but it may involve ghosts! E-mail email@example.com to save your spot. Fri., Nov. 4, 7-10:30 p.m.; Sat., Nov. 12, 7-10:30 p.m.; Sat., Nov. 19, 7-10:30 p.m., $33, 618-462-4009, www.hauntedalton.com. Piasa Masonic Temple, 300 State St, Alton, IL, 618-462-1542.
Antoinette's Eating with the Entities Tour: Enjoy cuisine from Tony's Restaurant in Alton, but watch your plate -- the ghosts could be hungry! A trolley tour is a part of this night out, too. E-mail firstname.lastname@example.org to save your spot. Fri., Oct. 28, 6-10:30 p.m.; Sat., Oct. 29, 6-10:30 p.m.; Sun., Oct. 30, 6-10:30 p.m.; Sat., Nov. 5, 6-10:30 p.m., $54, 618-462-4009, www.hauntedalton.com. Piasa Masonic Temple, 300 State St, Alton, IL, 618-462-1542.
Antoinette's Witching Hour Tour: Like the Bare Bones tour, you will be served no dinner, but you will be ghost-hunting on the trolley at the prime time. E-mail email@example.com to save your spot. Fridays, Saturdays, 10 p.m.-2 a.m. Continues through Nov. 19, $42, 618-462-4009, www.hauntedalton.com. Piasa Masonic Temple, 300 State St, Alton, IL, 618-462-1542.
Arch Rivals Comedy Showcase: This show of "chills, dancing, monsters and costumes" includes the audience, who should be dressed up in costumes as well. Wed., Oct. 26, 7:30 p.m., $5, 314-495-9454, www.entertainmentgroup.biz. Schlafly Tap Room, 2100 Locust St, St. Louis, 314-241-2337, www.schlafly.com.
Bare as You Dare Fantasy and Fetish Ball: Dress in a scandalously revealing costume (body paint, chaps and/or liquid latex are recommended) and get in for free. Sun., Oct. 30, 12-3 a.m. Faces, 132 Collinsville Ave, East St. Louis, IL, 618-271-7410, www.facesnolimits.com.
A Beer and a Shot: Where Beer Baron Billy Lemp Meets Al Capone: The several-course meal that accompanies this murder-mystery dinner theater includes apps, salads, main courses, desserts and more; the rest, well, that's a mystery! Call ahead to make reservations. Fridays, Saturdays, 7 p.m. Continues through Nov. 5, $45.95. Lemp Mansion Restaurant & Inn, 3322 DeMenil Place, St. Louis, 314-664-8024, www.lempmansion.com.
Black Friday: Halloween costume party with DJ SOS and Mark Lewis, drink specials and all-you-can-drink beer & well option ($25 at the door); no cover. Fri., Oct. 28, 8:30 p.m.-1:30 a.m. 609 & U Lounge, 609 Eastgate Ave, University City, 314-721-9168, www.609u.com.
Boo-tacular Car Wash: Black cars are washed free by costumed attendants, and free cookies and candy are handed out to all patrons; donations gladly given to St. Louis Children's Hospital. Mon., Oct. 31. Gas House Express Car Wash, 9849 Manchester Rd, St. Louis.
Carnivale: Fund raiser for Craft Alliance features art activities, carnival games, concessions, live entertainment, adult beverages and Halloween movies projected on the building. Sat., Oct. 29, 4-8 p.m., $6. Craft Alliance, 6640 Delmar Blvd, University City, 314-725-1177, www.craftalliance.org.
The Cat and the Canary: New Music Circle provides a live soundtrack for this silent horror movie about a woman who will inherit a wealthy relative's estate -- provided she can be proven sane (hint: she may not be sane if proof is a stipulation of the will). Fri., Oct. 28, 7 p.m., $3-$5, www.newmusiccircle.org. Saint Louis Art Museum, Forest Park, St. Louis, 314-721-0072, www.slam.org.
Celtic New Year Celebration: Celebrate the holiday that morphed into Halloween with a special evening of music and tales by Geroid O'hAllmurhain and Eileen Gannon. Sat., Oct. 29, 5 & 7 p.m., $10, call 636-798-2005 for info. Daniel Boone Home, 1868 Hwy F 5 mi. w. of Hwy 94, Defiance.
Chatillon-DeMenil Mansion Tours: Check out this old Greek-revival-style mansion, built in 1848, and its 1904 World's Fair memorabilia, and then have lunch at Cafe DeMenil (in the house's old carriage house) -- what a nice day! But beware: During the month of October, the house will observe Victorian-style mourning customs. Creepy! Tuesdays-Saturdays, 10 a.m.-3 p.m., $1-$4 for the guided tour. Chatillon-DeMenil Mansion, 3352 DeMenil Place, St. Louis, 314-771-5828, www.demenil.org.