Inspector Cullot, and his world-famous Murder Squad, are engaged in a race against time to find the murderers of three wealthy men, gruesomely dispatched in three of the poshest apartments in London. Amongst the array of suspects are a collection of gorgeous women, and men, from across Europe. Does the key to unlocking this case turn on the nationality of the victims, and suspects? And what’s the relevance of the colour of the victims’ socks? Greater urgency is given to the squad’s investigations when Stephanie, Cullot's gorgeous daughter, is kidnapped. Can you home in on the vital clues, disregard the red herrings…and spot the killer…or killers?