When successful mystery novelist and fledgling private detective, Marius Quin, is invited to speak at the Mystery and Detection Society he jumps at the chance of a luxurious weekend away on the English Riviera. But arriving at Torquay’s Grand Hotel with his sleuthing partner Lady Bella Montague, there is the definite sense that all is not well.

When they wake the next morning to discover the body of a cantankerous local in the hotel pool, things go from bad to worse. But how can the duo catch a killer when every piece of evidence they uncover is contradicted by two more? Faced with a hostile police sergeant, evasive witnesses and a conspiracy to conceal the truth, Bella and Marius must call upon every last resource they possess to uncover the secret of the body at the Grand Hotel.