Back in her Mayfair home, Lady Emily Hargreaves is looking forward to enjoying the delights of the Season - waltzing with her dashing husband, and joining the Women's Liberal Federation in the early stages of its campaign to win votes for women. But an audacious vandal is disturbing the peace in this metropolitan city, splashing red paint on the neat edifices of the homes of London' s elite. This act, impossible to hide, presages the revelation of scandalous secrets, driving the victims into disgrace, despair, and even death.
Soon, all of London Society is living in fear of being the next target and it's down to Lady Emily and her husband Colin to uncover the identity and reveal the motives of the twisted mind behind all this before another innocent life is lost.