When Conan, Richard, and Rachel are offered a free stay at a posh hotel on the beach if they join a mystery tour, they jump at the chance. But their accommodations are only paid for in full if they uncover the identity of the tour promoter who is posing as one of the guests. It's all fun in the sun until one of the tour members is murdered! But which of the other tour members would murder the promoter and why? Could it be the sexy entrepreneur, Heidi Camino? Or perhaps the oddly intimidating computer expert Mark McKean? Or perhaps former Martial Arts Champ Cliff Reed and his fiancé, Audra? The wise, elderly Winston Cadbury and his burly assistant, Miss Bunn, also cast an aura of suspicion. Just when Conan thinks he's close to solving the puzzle the unexpected happens; Knight Baron appears! But if the victim wasn't the tour promoter, then who is? And why has he lured these guests together for a mystery contest only to turn it into his personal game of murder?