When Hazel Wong's beloved grandfather passes away, Daisy Wells accompanies her best friend (and Detective Society vice president) to Hazel's family estate in beautiful, bustling Hong Kong. But when they arrive, they discover something they didn't expect: a new baby brother for Hazel!

Hazel and Daisy think a surprise sibling is enough to be getting on with, but where they go, mystery always follows. And when tragedy strikes very close to home, this time Hazel isn't just the detective on the case... She's been framed for murder!

Now the girls must work together to confront dangerous gangs, mysterious suspects, and sinister private detectives to solve the murder and clear Hazel's name before it's too late.