The conclusion to the events that led Elizabeth to Rapture. The content follows from the events of BioShock Infinite which spanned several alternate realities and was themed on the nature of choice. While Infinite took place aboard Columbia, the floating air city in 1912, Burial at Sea takes place in an alternate reality, within the underwater city of Rapture, and a year before the events of the first BioShock game in 1958. The game features Booker DeWitt as a private detective, and Elizabeth as a femme fatale that employs Booker's services.