A derelict beachside resort along the Black Sea is constructed upon deception and deep connections to the criminal underworld; experts investigate and uncover dark secrets behind a sprawling holiday complex constructed by the Russian mafia. Stories: 1) HMS Jackdaw, Fife, Scotland; 2) Costa del Croco, Tsentar, Bulgaria; 3) Sonnenberg Shelter, Lucerne, Switzerland; 4) Edinburgh Manor, Iowa, USA