Venice 1911. Monica is a 14-year-old with a wild imagination and an unbearably dull governess named Rose Driscoll. With her parents and uncle now dead she has been forced to move in with a woman who is living proof that an exciting life is not guaranteed. Driscoll has dutifully planned this trip to Venice as directed by a 'letter of wishes' in a will but on the very first morning as the sunlight streams through the curtains of their Palazzo Monica wakes up to a horrible realisation: has she killed her only guardian? Too scared to find out the truth Monica flees her room and immerses herself in the mysterious streets canals and squares of Venice all the while her thoughts spinning back to a dark childhood in London and her fear of what the future holds.