Inspector Hadley the Ingenious Murders

Following the murder of Doctor Pemberton in the Albert Hall during a performance of Tchaikovsky music, Inspector Hadley and Sergeant Cooper are assigned to the case but as they begin their investigation, Lady Beatrice Maitland, a patient of Doctor Pemberton, is found dead at the Savoy Hotel in mysterious circumstances. A post mortem reveals that she had been murdered in an ingenious way, which shocks her devoted husband, Sir Rupert Maitland, one of the wealthiest Merchant Bankers in the City. The detectives follow up every possible lead before Sir Phillip Doyle, a Director of a City Bank, is seen to leap into the path of an underground train at Farringdon station. Sir Phillip was a close friend of Sir Rupert Maitland, who now suspects that he will be next to die at the hands of the murderer. Jonathan Hurst, a suspect in the case, is found dead at his Club which causes more problems in the investigation. Sir Rupert leaves London to take refuge at his country house in Northampton at the moment his brother is murdered in St. Paul's Cathedral followed by the murder of Sir Jocelyn Whittaker, another friend of Sir Rupert, at his home. Finally, the detectives trace and confront the murderer on a yacht moored in the Thames.