Unbeknownst to him, Inspector Witherspoon, Scotland Yard's top detective, has an entire crew working behind the scenes to help him find the answers to his toughest cases - including Mrs Jeffries, his housekeeper and the brains behind his astounding success; Mrs Goodge, the cook; Wiggins, the footman; and many more. Murderers in Victorian England don't stand a chance of getting away with their crimes with this crew hunting them down! When the inspector is called to investigate a stabbing, he learns that the victim travelled from Australia to Sheridan Square to visit her sister - only to die in the middle of a locked garden. All the residents have a key to the garden, so who is the murderer, and what was their motive? Witherspoon's staff and their friends must quickly rally to find the answers.