Join us at Custer State Park’s Sylvan Lake Lodge for an unforgettable evening of mystery, intrigue, and high society celebration. Immerse yourself in the swinging '40s with our themed Murder Mystery Dinner, where you’ll enjoy a delicious meal while unraveling a thrilling whodunit.
NEW for 2026: Join us for a 12:30pm lunch show (age 12+) or a 5:00pm dinner show & dance (21+ only).
Back for the third year in a row! Having worked with over half of the Fortune 500, THEY Improv has worked all over the U.S. and has become one of the biggest companies of their type in the world. With past clients including Wal-Mart, McDonald's, Coca-Cola, Boeing, Amazon, GM, Verizon & more, they customize their hired performances to offer services that include improv comedy, stand-up comedy, game shows, magic shows, corporate events, business consulting, and murder mysteries.
Tonight, it is the year 1946, and you are cordially invited to a high society evening at the Crown Jewel of the Black Hills -- the newly opened Sylvan Lake Lodge. Join the region's elite as we toast to new beginnings, restored prosperity, and the promise of a brighter tomorrow.
But a word of caution...
Before the evening is over, a mystery will unfold...
Twice the fun! Chose the family-friendly (age 12 and up) show for lunch, or stick with the dinner show that adds a cash bar, live band & dance. Age 21+.
Admission for either show includes a full Custer Themed Buffet and dessert. Evening show adds hors d'Oeuvres, champagne, a Cash Bar, and a live Swing Band!
Don your finest tea dress, satin and pearls, or swing trousers and pressed suits and add to the immersive atmosphere of the event.
Take advantage of our special event rate for a Sylvan Lake Lodge Hotel Room ($159) or Cabin ($259-$269), and make it a weekend to remember. Event confirmation with full payment required for discounted rate to apply.
Lunch
$TBD per person + taxes & fees
Includes lunch buffet, dessert & murder mystery show. Inquire about your special event room rate after RSVPing for the Mystery Dinner.
Dinner
$TBD per person + taxes & fees
Includes dinner buffet, dessert, hors d'Oeuvres, glass of champagne, live band & dance. Inquire about your special event room rate after RSVPing for the Mystery Dinner.
Date: Saturday, October 17th | Lunch Show: 12:30pm (age 12+) or Dinner Show: 5:00pm (age 21+)
Location: Sylvan Lake Lodge | Auditorium
Theme: 1940s swing
Buffet: A specially curated meal with dessert from Executive Chef Epi
Cost: $TBD + tax & fees per person (lunch) $TBD + tax & fees per person (dinner w band)
Room: Special discounted rates for lodge room or cabin start at $159/night with event confirmation.
Check-in: 12:30pm
Buffet Open: 1:15pm
Event Concludes: 3:00pm
Check-in: 5:00pm
Buffet Open: 5:45pm
Band/Event Concludes: 10:00pm
Check-in at the Sylvan Lake Lodge Auditorium for the Murder Mystery Dinner. If you book a room at the Sylvan Lake Lodge, lodging check-in will be at the Sylvan Lake Lodge Front Desk anytime after 4pm. Please plan accordingly. You won't want to be late to the show!
