One party-goer asks Ritchie if he is into Plastics. That is a reference to a quote directed to Dustin Hoffman character in the The Graduate (1967).
The Count of Monte Cristo is a historical novel by French author Alexandre Dumas based on memoirs published by archivist Jacques Peuchet in 1838 of incidents in France of a shoemaker, Pierre Picaud, who lived in Nîmes in 1807, who was engaged to a rich woman when three friends falsely accused him of being a spy for England. Picaud was placed under arrest and served as a servant in Fenestrelle Fort to a rich Italian cleric. When the cleric died, he left his fortune to Picaud, who then spent years plotting his revenge on the three men responsible for his subservience. One he stabbed, the next he poisoned and the third, who had married his fiancée, he lured his son into crime and his daughter into prostitution before eventually stabbing him. His revenge complete, he was then murdered by a compatriot of the three accusers.