Movies in the Garden: Series of outdoor movies in the beer garden. This portion features Alfred Hitchcock's Psycho. 7 p.m., Green Bench Brewing Co., 1133 First Ave. N, St. Petersburg. Free. (727) 800-9836.
Pipe Organ Concert: Bring your lunch and enjoy a concert by the Mighty Wurlitzer Theatre Organ, which produces the sound of a full orchestra including percussion. 11:30 a.m., Pinellas Park Auditorium, 7690 59th St. N, Pinellas Park. Free. (727) 541-0895.
Owl-o-ween: Trick or treat along the haunted trail in search of nocturnal creatures and ghosts while enjoying crafts, games and scary stories around a campfire. 6 p.m., McGough Nature Park, 11901 146th St. N, Largo. $5, 2 and younger free. (727) 518-3047.
Carmen: Jennifer Feinstein plays the title role in the tale of the fiery gypsy and her soldier lover. Baritone Christopher Holloway plays Escamillo, the bullfighter. 7:30 p.m., Palladium Theater, 253 Fifth Ave. N, St. Petersburg. $22-$67. (727) 822-3590.
A Gentleman's Guide to Love and Murder: The 2012 Tony Award winner for Best Musical tells the hilarious story of Monty Navarro, a distant heir to a family fortune who sets out to slay his way through the line of succession, and be done in time for tea. Through Sun. 8 p.m., Carol Morsani Hall at the Straz Center for the Performing Arts, 1010 N MacInnes Place, Tampa. $40-$95. (813) 229-7827.
Maze of Horror: An office worker unknowingly brings an infectious disease to his office and it quickly spreads. Enter the Zombie Quarantine Experience and see who comes out alive. Benefits music programs for underprivileged children. 7 p.m., Maze of Horror, 2350 34th St. N, St. Petersburg. $10. (727) 278-1547.
Wordier than Thou: Prose and Short Story Open Mic: A unique open mic series focusing on storytelling. Poetry and musical performances are not allowed. Includes a performance by a featured reader followed by numerous 10-minute open mic slots. 7 p.m., Studio@620, 620 First Ave. S, St. Petersburg. $5. (727) 895-6620.
KIDS AND FAMILY
Puddle Jumpers: Children ages 3 to 4 can enjoy a nature story, crafts and outdoor exploration. 9:30 a.m., Boyd Hill Nature Preserve, 1101 Country Club Way S, St. Petersburg. $5. (727) 893-7326.
SERIES PREMIERE Sweat Inc., 10 p.m., SpikeTV. Former The Biggest Loser trainer Jillian Michaels searches for America’s next fitness craze. Passionate entrepreneurs compete to win $100,000 and a chance to launch their workout concept in gyms across the nation.
MORE TO EXPLORE
Find out who is coming to the area at tampabay.com/things-to-do.