Composed of ten districts, Concordia is a booming Victorian city of innovation and new beginnings in the late 19th century, despite the presence of feuding gangs and a corrupt police force. The Concordian Flying Squad is the featured law enforcement agency that serves the city.
Concordia features a total of sixty cases, which are located across ten different districts:
Based on 1900s New York, New Haven is the first district investigated in Concordia. It focuses on the flocking of immigrants from all over the world, most notably Ireland, to the city of Concordia, where they clash with frustrated native Concordians. It also focuses on a city fire burning down the police's evidence, as well as the possible involvement of Father Donovan in an evil scheme.
Elysium Fields is the second district of Concordia. Hosting six soirées for the elite annually, the district focuses on investigating these parties held by the unseen Mr Alastor, who seems to be holding the parties for murders to occur.
Century Mile is the third district of Concordia. A district boasting architectural and technological advancements and innovations, it focuses on the World Exhibition, where various inventors and scientists are presenting their works, which are being sabotaged by a mysterious saboteur. It also focuses on Judge Takakura's retirement and Justin Lawson's desire to be the new city judge.
Sinner's End is the fourth district of Concordia. A seedy district of prostitutes, gamblers, alcoholics all controlled by Irish thugs, Sinner's End focuses on cracking down on the Flanagan siblings that run the seedy and illegal operations in the district. It also focuses on catching the "Scarlet Slayer", a serial killer targeting prostitutes in the district.
Coyote Gorge is the fifth district of Concordia. Located in "the wild east," the district hosts cowboys, ghost towns, gold mines, and the infamous Stonewall Prison, all run by the Italian gang. It focuses on investigating the actions of the Italian gang, especially their forced evictions of the district's citizens from their houses.
Crimson Banks is the sixth district of Concordia. A commercial hub of the city, Crimson Banks is home to the Italian and Irish communities that coexist in peace. The district focuses on preventing the Italian gang from avenging its leader, as well as preventing (and later stopping) a war between the Italian and Irish gangs.
Wolf Street is the seventh district of Concordia. Based on Wall Street, the financial district of Concordia initially focuses on investigating the Rochester family's involvement in the movements of the Italian gang in Coyote Gorge. It then focuses on a financial crisis set off by the murder of a Rochester, and a company that promises to save the people from bankruptcy.
Grim Chapel is the eighth district of Concordia. Known as a "ghastly district" of asylums and the supernatural, the district focuses on investigating the Rochesters' dealings, including the death of their enemies in "freak accidents" there, and the dark background of the mental asylum, Gryphon Sanctuary. Furthermore, it deals with a murder consultant known as "the Devil", as well as Justin Lawson's candidacy for deputy mayor.
Ivory Hill is the ninth district of Concordia. The political heart of the city, the district focuses on fighting against the corrupt and morally bankrupt Rochester family, who plan on reclaiming Concordia as their own to establish a new city-state under their own rule. It also focuses on Justin Lawson's adjustments to his new job as deputy mayor.
Capitol Peak is the tenth and final district of Concordia. With Justin Lawson abolishing the free press and forming a militia as he assumes the position of mayor, the district focuses on the Squad opposing his radical and oppressive regime involving puppet police forces, spontaneous arrests, and death sentences while avoiding getting shut down by Lawson himself.