Behind the sequins and sparkle of Blackpool Tower Ballroom's famous Dance Festival, the competition is about to turn deadly. When a promising young dancer collapses during the opening tango of the festival, Lily Richmond, dance legend, teacher and one-time world champion, is convinced that murder is afoot. There's only one person who can help her delve into the mystery: her former student and private detective, Susie Cooper. But Susie vowed she'd never return to the ballroom - let alone go undercover as a professional dancer when there's a killer on the loose. As the competition gets even fiercer and the bodies start to pile up, can the unlikely dance-detective duo unravel the rumours from the rumbas and expose the murderer's identity, before they strike again?