In 1949, a gruesome murder shakes the small town that's home to the notorious Aztec Hotel. A mysterious killer dubbed the Flower Arranger mixes and matches the body parts of their victims then disappears, leaving the mystery unsolved for decades. Now, over 70 years later, the hotel owners claim they will reveal the killer's true identity to anyone who takes their special tour. A young woman new to town and curious about the infamous local attraction decides to join this once-in-a-lifetime tour but soon finds that someone—or something—will go to deadly lengths to keep the secret hidden forever, no matter the cost.