Wild Boy has been covered in hair since birth; he’s the missing link, a monster, a sideshow spectacle. Condemned to life in a travelling freakshow, excluded from society and abused by his master, he takes refuge in watching people come and go at the fair – and develops a Sherlock Holmes style talent for observation and detection. But when there’s a murder, suspicion turns on Wild Boy, and he and the feisty redhaired acrobat Clarissa Everett find themselves on the run from a London-wide manhunt. Together, the detective and the acrobat must solve clues to identify the real killer.