Valentine’s Day-Themed Murder Mystery Event at Hyatt Regency Hill Country Hyatt Regency Hill Country Resort and Spa and Baker Street Mystery presents “Till Death Do Us Part,” an immersive wedding-themed murder mystery event at its Cactus Oak Tavern. In honor of Valentine’s Day, attendees will work to uncover a romance-inspired mystery while enjoying an open bar and delicious appetizers created by the resort’s culinary team. Tickets are $70 per adult, $40 per minor.